<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019feccd-4f13-7c10-b9e7-9366bae0970a,g:3e8600c7-023b-4db1-941d-39ac6f4fc881-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.americold.com/role/CondensedConsolidatedStatementsofOperationsUnaudited" xlink:type="simple" xlink:href="art-20260930.xsd#CondensedConsolidatedStatementsofOperationsUnaudited"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/CondensedConsolidatedStatementsofOperationsUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019feccd-5048-7e72-bc8d-2183171c49dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_StatementTable_019feccd-5048-7e72-bc8d-2183171c49dd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019feccd-5048-71c2-b970-5b1da13587c0" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019feccd-5048-7e72-bc8d-2183171c49dd" xlink:to="loc_srt_ConsolidationItemsAxis_019feccd-5048-71c2-b970-5b1da13587c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019feccd-5048-71c2-b970-5b1da13587c0_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_019feccd-5048-71c2-b970-5b1da13587c0" xlink:to="loc_srt_ConsolidationItemsDomain_019feccd-5048-71c2-b970-5b1da13587c0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019feccd-5048-7f52-8890-d8c2664b3433" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_019feccd-5048-71c2-b970-5b1da13587c0" xlink:to="loc_srt_ConsolidationItemsDomain_019feccd-5048-7f52-8890-d8c2664b3433" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019feccd-5048-77ae-b82c-d6a6af41c0d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019feccd-5048-7f52-8890-d8c2664b3433" xlink:to="loc_us-gaap_OperatingSegmentsMember_019feccd-5048-77ae-b82c-d6a6af41c0d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-5048-7c1e-80ff-73c2aeb0b9f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019feccd-5048-7e72-bc8d-2183171c49dd" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-5048-7c1e-80ff-73c2aeb0b9f8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019feccd-5048-7c1e-80ff-73c2aeb0b9f8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-5048-7c1e-80ff-73c2aeb0b9f8" xlink:to="loc_us-gaap_SegmentDomain_019feccd-5048-7c1e-80ff-73c2aeb0b9f8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019feccd-5048-7384-89eb-a1d8d8231504" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-5048-7c1e-80ff-73c2aeb0b9f8" xlink:to="loc_us-gaap_SegmentDomain_019feccd-5048-7384-89eb-a1d8d8231504" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_WarehouseSegmentMember_019feccd-5048-7bba-8b4a-bd5eb02fef51" xlink:href="art-20260930.xsd#art_WarehouseSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019feccd-5048-7384-89eb-a1d8d8231504" xlink:to="loc_art_WarehouseSegmentMember_019feccd-5048-7bba-8b4a-bd5eb02fef51" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_TransportationSegmentMember_019feccd-5048-7d75-ab86-6db34d0fddaa" xlink:href="art-20260930.xsd#art_TransportationSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019feccd-5048-7384-89eb-a1d8d8231504" xlink:to="loc_art_TransportationSegmentMember_019feccd-5048-7d75-ab86-6db34d0fddaa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_01a1a2f6-1658-730b-addb-149494f5bac8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019feccd-5048-7e72-bc8d-2183171c49dd" xlink:to="loc_srt_ProductOrServiceAxis_01a1a2f6-1658-730b-addb-149494f5bac8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a1a2f6-1658-730b-addb-149494f5bac8_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_01a1a2f6-1658-730b-addb-149494f5bac8" xlink:to="loc_srt_ProductsAndServicesDomain_01a1a2f6-1658-730b-addb-149494f5bac8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a1a2f6-1658-7d98-9a17-b6156712872f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_01a1a2f6-1658-730b-addb-149494f5bac8" xlink:to="loc_srt_ProductsAndServicesDomain_01a1a2f6-1658-7d98-9a17-b6156712872f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_JointVentureRelatedManagementFeeAndReimbursedCostsMember_01a1a2f6-5041-777b-b28b-b0020c2648c9" xlink:href="art-20260930.xsd#art_JointVentureRelatedManagementFeeAndReimbursedCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a1a2f6-1658-7d98-9a17-b6156712872f" xlink:to="loc_art_JointVentureRelatedManagementFeeAndReimbursedCostsMember_01a1a2f6-5041-777b-b28b-b0020c2648c9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_019feccd-5048-741a-9b64-b20e4cb60332" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_RevenuesAbstract_019feccd-5048-741a-9b64-b20e4cb60332" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019feccd-5048-7e16-9bb3-4856a20221dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019feccd-5048-741a-9b64-b20e4cb60332" xlink:to="loc_us-gaap_Revenues_019feccd-5048-7e16-9bb3-4856a20221dc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019feccd-5048-7ec2-b863-3ce65998e56d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_us-gaap_CostOfRevenue_019feccd-5048-7ec2-b863-3ce65998e56d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_JointVentureRelatedManagementFeeAndReimbursedCosts_01a1a4f0-cdd5-7484-8fc7-9ebdef6c902e" xlink:href="art-20260930.xsd#art_JointVentureRelatedManagementFeeAndReimbursedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_art_JointVentureRelatedManagementFeeAndReimbursedCosts_01a1a4f0-cdd5-7484-8fc7-9ebdef6c902e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtIssuanceCostsAndDiscountsAndBelowMarketLeases_019feccd-5048-7b48-bb64-be91c8fc3e0b" xlink:href="art-20260930.xsd#art_DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtIssuanceCostsAndDiscountsAndBelowMarketLeases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_art_DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtIssuanceCostsAndDiscountsAndBelowMarketLeases_019feccd-5048-7b48-bb64-be91c8fc3e0b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019feccd-5048-7d53-bff0-ee1ceb122e15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019feccd-5048-7d53-bff0-ee1ceb122e15" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BusinessCombinationAcquisitionRelatedExpensesLitigationsExpenseAndOther_019feccd-5048-78dc-ae22-d0487d3289bb" xlink:href="art-20260930.xsd#art_BusinessCombinationAcquisitionRelatedExpensesLitigationsExpenseAndOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_art_BusinessCombinationAcquisitionRelatedExpensesLitigationsExpenseAndOther_019feccd-5048-78dc-ae22-d0487d3289bb" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_019feccd-5048-7844-ab32-6d936e2ecae9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_019feccd-5048-7844-ab32-6d936e2ecae9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019feccd-5048-76b1-bb2d-16055416b64a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_us-gaap_CostsAndExpenses_019feccd-5048-76b1-bb2d-16055416b64a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019feccd-5048-7b6c-a1fd-0963027a37ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019feccd-5048-7b6c-a1fd-0963027a37ff" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BusinessCombinationGainLossOnJointVentureFormation_01a0ed19-9cec-77ad-9387-40b452e669ab" xlink:href="art-20260930.xsd#art_BusinessCombinationGainLossOnJointVentureFormation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019feccd-5048-7fce-a3c7-22cf65d431bb" xlink:to="loc_art_BusinessCombinationGainLossOnJointVentureFormation_01a0ed19-9cec-77ad-9387-40b452e669ab" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019feccd-5048-7707-b063-f6311bbb9295" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_OperatingIncomeLoss_019feccd-5048-7707-b063-f6311bbb9295" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019feccd-5048-760d-8895-f81418162a08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019feccd-5048-760d-8895-f81418162a08" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019feccd-5048-7623-b848-103b19d7b061" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019feccd-5048-760d-8895-f81418162a08" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019feccd-5048-7623-b848-103b19d7b061" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019feccd-5048-7a18-b9f3-096ea6169cdd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019feccd-5048-760d-8895-f81418162a08" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019feccd-5048-7a18-b9f3-096ea6169cdd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019feccd-5048-71d9-9019-b3f124cce7fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019feccd-5048-760d-8895-f81418162a08" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019feccd-5048-71d9-9019-b3f124cce7fc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019feccd-5048-76cd-ac6f-75b36fe41496" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019feccd-5048-76cd-ac6f-75b36fe41496" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_019feccd-5048-769e-b461-c67112fadb6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_019feccd-5048-769e-b461-c67112fadb6a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_019feccd-5048-7068-8510-ace614ef1399" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_019feccd-5048-769e-b461-c67112fadb6a" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_019feccd-5048-7068-8510-ace614ef1399" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019feccd-5048-75f9-81db-c07e46f5277d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_019feccd-5048-769e-b461-c67112fadb6a" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019feccd-5048-75f9-81db-c07e46f5277d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019feccd-5048-7054-9819-2b842846ad73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_019feccd-5048-769e-b461-c67112fadb6a" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019feccd-5048-7054-9819-2b842846ad73" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019feccd-5048-7d4e-9827-24ccaeb926ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_ProfitLoss_019feccd-5048-7d4e-9827-24ccaeb926ff" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019feccd-5048-79b5-b195-2edf348eaeec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019feccd-5048-79b5-b195-2edf348eaeec" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019feccd-5048-7212-97e9-52332ca72414" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_NetIncomeLoss_019feccd-5048-7212-97e9-52332ca72414" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019feccd-5048-7768-8f5b-d19ef968c5b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019feccd-5048-7768-8f5b-d19ef968c5b8" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019feccd-5048-74bf-af96-dd404cf5ba35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019feccd-5048-74bf-af96-dd404cf5ba35" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019feccd-5048-787f-9235-26c8b0c342e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_EarningsPerShareBasic_019feccd-5048-787f-9235-26c8b0c342e5" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019feccd-5048-756d-8e24-7b6c00a9a8f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7ca2-9f17-1b168fcc2316" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019feccd-5048-756d-8e24-7b6c00a9a8f3" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/CondensedConsolidatedStatementsofEquityUnaudited" xlink:type="simple" xlink:href="art-20260930.xsd#CondensedConsolidatedStatementsofEquityUnaudited"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/CondensedConsolidatedStatementsofEquityUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019feccd-5048-7091-a0e6-deffcdb8e1fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019feccd-5048-7b6c-8424-417659b90dcb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7091-a0e6-deffcdb8e1fd" xlink:to="loc_us-gaap_StatementTable_019feccd-5048-7b6c-8424-417659b90dcb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019feccd-5048-7b63-8550-3f827d7e6dd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019feccd-5048-7b6c-8424-417659b90dcb" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019feccd-5048-7b63-8550-3f827d7e6dd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019feccd-5048-7b63-8550-3f827d7e6dd1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019feccd-5048-7b63-8550-3f827d7e6dd1" xlink:to="loc_us-gaap_EquityComponentDomain_019feccd-5048-7b63-8550-3f827d7e6dd1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019feccd-5048-7bd3-8f86-350cd85ebcf3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019feccd-5048-7b63-8550-3f827d7e6dd1" xlink:to="loc_us-gaap_EquityComponentDomain_019feccd-5048-7bd3-8f86-350cd85ebcf3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019feccd-5048-764a-9290-b1991eaf8994" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019feccd-5048-7bd3-8f86-350cd85ebcf3" xlink:to="loc_us-gaap_CommonStockMember_019feccd-5048-764a-9290-b1991eaf8994" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019feccd-5048-79cc-9b3e-d59090c347b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019feccd-5048-7bd3-8f86-350cd85ebcf3" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019feccd-5048-79cc-9b3e-d59090c347b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019feccd-5048-72ad-a652-79a57d26b7dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019feccd-5048-7bd3-8f86-350cd85ebcf3" xlink:to="loc_us-gaap_RetainedEarningsMember_019feccd-5048-72ad-a652-79a57d26b7dc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019feccd-5048-77d6-9a19-e8961ad98c6d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019feccd-5048-7bd3-8f86-350cd85ebcf3" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019feccd-5048-77d6-9a19-e8961ad98c6d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_019feccd-5048-700d-ab7c-109820a57e72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019feccd-5048-7bd3-8f86-350cd85ebcf3" xlink:to="loc_us-gaap_NoncontrollingInterestMember_019feccd-5048-700d-ab7c-109820a57e72" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019feccd-5048-7091-a0e6-deffcdb8e1fd" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019feccd-5048-7f59-9581-9c5336c25259" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019feccd-5048-7f59-9581-9c5336c25259" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019feccd-5048-7240-8e31-162da26420f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019feccd-5048-7240-8e31-162da26420f3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019feccd-5048-7ce1-bdd3-725c2870cc7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_ProfitLoss_019feccd-5048-7ce1-bdd3-725c2870cc7d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentExcludingHyperinflationAdjustment_019feccd-5048-714f-bf1a-4cc829feec3f" xlink:href="art-20260930.xsd#art_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentExcludingHyperinflationAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_art_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentExcludingHyperinflationAdjustment_019feccd-5048-714f-bf1a-4cc829feec3f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStock_019feccd-5048-7e52-a59d-636689d85be9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_DividendsCommonStock_019feccd-5048-7e52-a59d-636689d85be9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019feccd-5048-768a-acb6-a22aaa6b421e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019feccd-5048-768a-acb6-a22aaa6b421e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_019feccd-5048-730a-a0c7-9ca7b10c009f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_019feccd-5048-730a-a0c7-9ca7b10c009f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019feccd-5048-71b9-ac8d-bb11051b496e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019feccd-5048-71b9-ac8d-bb11051b496e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_019feccd-5048-7cd9-b419-726a89355c67" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_019feccd-5048-7cd9-b419-726a89355c67" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_019feccd-5048-7570-9855-2baed5e0400b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_019feccd-5048-7570-9855-2baed5e0400b" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_019feccd-5048-7981-8ea0-22735f5fa2bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_019feccd-5048-7981-8ea0-22735f5fa2bc" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_019feccd-5048-7a12-9694-389642ede501" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019feccd-5048-72a7-8e5f-1ddb4f6876e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_019feccd-5048-7a12-9694-389642ede501" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019feccd-5048-76ca-96a4-1ebc982bd8d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019feccd-5048-732f-a8c2-613646313274" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/GeneralDetails" xlink:type="simple" xlink:href="art-20260930.xsd#GeneralDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/GeneralDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-5048-7304-86ef-f815b981d3f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-5048-7304-86ef-f815b981d3f4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019feccd-5048-71f2-8420-b2323f8ce307" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-5048-7304-86ef-f815b981d3f4" xlink:to="loc_srt_StatementGeographicalAxis_019feccd-5048-71f2-8420-b2323f8ce307" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019feccd-5048-71f2-8420-b2323f8ce307_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019feccd-5048-71f2-8420-b2323f8ce307" xlink:to="loc_srt_SegmentGeographicalDomain_019feccd-5048-71f2-8420-b2323f8ce307_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019feccd-5048-75aa-9a24-b26ed5c93926" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019feccd-5048-71f2-8420-b2323f8ce307" xlink:to="loc_srt_SegmentGeographicalDomain_019feccd-5048-75aa-9a24-b26ed5c93926" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NorthAmericaMember_019feccd-5048-7948-bbfc-5e0b0308ed72" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_NorthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-5048-75aa-9a24-b26ed5c93926" xlink:to="loc_srt_NorthAmericaMember_019feccd-5048-7948-bbfc-5e0b0308ed72" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember_019feccd-50e8-78ed-b920-d9c6ff19df88" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EuropeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-5048-75aa-9a24-b26ed5c93926" xlink:to="loc_srt_EuropeMember_019feccd-50e8-78ed-b920-d9c6ff19df88" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AsiaPacificMember_019feccd-50e8-72ef-87b1-4a5330f653c5" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_AsiaPacificMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-5048-75aa-9a24-b26ed5c93926" xlink:to="loc_srt_AsiaPacificMember_019feccd-50e8-72ef-87b1-4a5330f653c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SouthAmericaMember_019feccd-50e8-7e8a-810a-ba295abfa17b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SouthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-5048-75aa-9a24-b26ed5c93926" xlink:to="loc_srt_SouthAmericaMember_019feccd-50e8-7e8a-810a-ba295abfa17b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_AE_019feccd-50e8-75b2-8546-541b8c10a1c2" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_AE"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-5048-75aa-9a24-b26ed5c93926" xlink:to="loc_country_AE_019feccd-50e8-75b2-8546-541b8c10a1c2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a1164b-e96a-7099-aa37-a4dacbe07ca3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-5048-7304-86ef-f815b981d3f4" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a1164b-e96a-7099-aa37-a4dacbe07ca3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_01a1164b-e96a-7099-aa37-a4dacbe07ca3_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a1164b-e96a-7099-aa37-a4dacbe07ca3" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_01a1164b-e96a-7099-aa37-a4dacbe07ca3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_01a1164b-e96a-7567-9f90-036abee2cc63" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a1164b-e96a-7099-aa37-a4dacbe07ca3" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_01a1164b-e96a-7567-9f90-036abee2cc63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_NorthAmericanJointVentureMember_01a1164c-2925-7726-8d44-2354088d9be0" xlink:href="art-20260930.xsd#art_NorthAmericanJointVentureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_01a1164b-e96a-7567-9f90-036abee2cc63" xlink:to="loc_art_NorthAmericanJointVentureMember_01a1164c-2925-7726-8d44-2354088d9be0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AmericoldEQTColdStoragePartnershipLLCMember_01a11652-ac93-739d-801d-8dcb30ce99c8" xlink:href="art-20260930.xsd#art_AmericoldEQTColdStoragePartnershipLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_01a1164b-e96a-7567-9f90-036abee2cc63" xlink:to="loc_art_AmericoldEQTColdStoragePartnershipLLCMember_01a11652-ac93-739d-801d-8dcb30ce99c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_019feccd-50e8-733d-abeb-c1784ab13a1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-5048-7304-86ef-f815b981d3f4" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_019feccd-50e8-733d-abeb-c1784ab13a1a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_019feccd-50e8-733d-abeb-c1784ab13a1a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_019feccd-50e8-733d-abeb-c1784ab13a1a" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_019feccd-50e8-733d-abeb-c1784ab13a1a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_019feccd-50e8-7f5b-be4b-a03502dadf11" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_019feccd-50e8-733d-abeb-c1784ab13a1a" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_019feccd-50e8-7f5b-be4b-a03502dadf11" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationsMember_019feccd-50e8-7495-acee-fd7829ac5796" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_019feccd-50e8-7f5b-be4b-a03502dadf11" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationsMember_019feccd-50e8-7495-acee-fd7829ac5796" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019feccd-50e8-7cba-8f3d-0cbf1c93b73b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-5048-7304-86ef-f815b981d3f4" xlink:to="loc_srt_RangeAxis_019feccd-50e8-7cba-8f3d-0cbf1c93b73b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019feccd-50e8-7cba-8f3d-0cbf1c93b73b_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019feccd-50e8-7cba-8f3d-0cbf1c93b73b" xlink:to="loc_srt_RangeMember_019feccd-50e8-7cba-8f3d-0cbf1c93b73b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019feccd-50e8-78ef-b3d9-53c0744c6847" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019feccd-50e8-7cba-8f3d-0cbf1c93b73b" xlink:to="loc_srt_RangeMember_019feccd-50e8-78ef-b3d9-53c0744c6847" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019feccd-50e8-7150-8220-7601c0e2a770" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019feccd-50e8-78ef-b3d9-53c0744c6847" xlink:to="loc_srt_MinimumMember_019feccd-50e8-7150-8220-7601c0e2a770" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019feccd-50e8-7489-91f7-75cb810532a3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019feccd-50e8-78ef-b3d9-53c0744c6847" xlink:to="loc_srt_MaximumMember_019feccd-50e8-7489-91f7-75cb810532a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_01a11648-405f-74d9-8313-9c3d3df043b6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-5048-7304-86ef-f815b981d3f4" xlink:to="loc_srt_CounterpartyNameAxis_01a11648-405f-74d9-8313-9c3d3df043b6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a11648-405f-74d9-8313-9c3d3df043b6_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_01a11648-405f-74d9-8313-9c3d3df043b6" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a11648-405f-74d9-8313-9c3d3df043b6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a11648-405f-7d34-88d5-246e97906f8e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_01a11648-405f-74d9-8313-9c3d3df043b6" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a11648-405f-7d34-88d5-246e97906f8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_EQTMember_01a11648-7e27-782a-ab1c-8e2c01544cce" xlink:href="art-20260930.xsd#art_EQTMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a11648-405f-7d34-88d5-246e97906f8e" xlink:to="loc_art_EQTMember_01a11648-7e27-782a-ab1c-8e2c01544cce" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfRealEstateProperties_019feccd-50e8-79f7-a8dd-12c894006c64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfRealEstateProperties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_us-gaap_NumberOfRealEstateProperties_019feccd-50e8-79f7-a8dd-12c894006c64" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_VolumeOfWarehouse_019feccd-50e8-73f8-8325-1ab2084cf29b" xlink:href="art-20260930.xsd#art_VolumeOfWarehouse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_art_VolumeOfWarehouse_019feccd-50e8-73f8-8325-1ab2084cf29b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019feccd-50e8-7707-923c-f6cba66257e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_us-gaap_NumberOfReportableSegments_019feccd-50e8-7707-923c-f6cba66257e7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_NoncontrollingInterestInJointVenturesNumberOfEntities_019feccd-50e8-72b0-ac2c-106ba9867bac" xlink:href="art-20260930.xsd#art_NoncontrollingInterestInJointVenturesNumberOfEntities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_art_NoncontrollingInterestInJointVenturesNumberOfEntities_019feccd-50e8-72b0-ac2c-106ba9867bac" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_NoncontrollingInterestInJointVenturesPercent_01a1a2e2-62e1-78e3-9ae2-9401b3a0996d" xlink:href="art-20260930.xsd#art_NoncontrollingInterestInJointVenturesPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_art_NoncontrollingInterestInJointVenturesPercent_01a1a2e2-62e1-78e3-9ae2-9401b3a0996d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_NumberOfTemperatureControlledWarehouseFacilities_01a13901-f99c-719a-bb53-b264e19001c5" xlink:href="art-20260930.xsd#art_NumberOfTemperatureControlledWarehouseFacilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_art_NumberOfTemperatureControlledWarehouseFacilities_01a13901-f99c-719a-bb53-b264e19001c5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019feccd-50e8-79c5-9694-cf671ff02856" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019feccd-50e8-79c5-9694-cf671ff02856" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure_019feccd-50e8-7f1f-9659-d4c921975ac0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure_019feccd-50e8-7f1f-9659-d4c921975ac0" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_019feccd-50e8-78d1-b687-406541557b77" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_019feccd-50e8-78d1-b687-406541557b77" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_EstimatedFairValueOfRealEstateAssetsPerCubicFoot_019feccd-50e8-79fa-9530-33b3c5ce0222" xlink:href="art-20260930.xsd#art_EstimatedFairValueOfRealEstateAssetsPerCubicFoot"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_art_EstimatedFairValueOfRealEstateAssetsPerCubicFoot_019feccd-50e8-79fa-9530-33b3c5ce0222" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_JointVentureFormationNumberOfColdStorageFacilitiesContributed_019feccd-50e8-7028-a663-e1abc72046c9" xlink:href="art-20260930.xsd#art_JointVentureFormationNumberOfColdStorageFacilitiesContributed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_art_JointVentureFormationNumberOfColdStorageFacilitiesContributed_019feccd-50e8-7028-a663-e1abc72046c9" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_ProceedsFromCollectionOfAdvancesToPartiallyOwnedEntitiesInvestingActivity_01a06778-7d9e-7aea-b22c-e77cfb9863f2" xlink:href="art-20260930.xsd#art_ProceedsFromCollectionOfAdvancesToPartiallyOwnedEntitiesInvestingActivity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e8-7854-aec1-bb67de608aa5" xlink:to="loc_art_ProceedsFromCollectionOfAdvancesToPartiallyOwnedEntitiesInvestingActivity_01a06778-7d9e-7aea-b22c-e77cfb9863f2" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/AssetAcquisitionsandBusinessCombinationsDetails" xlink:type="simple" xlink:href="art-20260930.xsd#AssetAcquisitionsandBusinessCombinationsDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/AssetAcquisitionsandBusinessCombinationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019feccd-50e8-7972-93c6-83005b0e231b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019feccd-50e8-7fc9-8cae-467774784ec8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019feccd-50e8-7972-93c6-83005b0e231b" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019feccd-50e8-7fc9-8cae-467774784ec8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019feccd-50e8-7063-a2ed-c4027cd3929b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019feccd-50e8-7fc9-8cae-467774784ec8" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019feccd-50e8-7063-a2ed-c4027cd3929b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019feccd-50e8-7063-a2ed-c4027cd3929b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019feccd-50e8-7063-a2ed-c4027cd3929b" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019feccd-50e8-7063-a2ed-c4027cd3929b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019feccd-50e8-7c1f-9921-35254203d071" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019feccd-50e8-7063-a2ed-c4027cd3929b" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019feccd-50e8-7c1f-9921-35254203d071" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_MassillonAcquisitionMember_019feccd-50e8-722f-9edf-7aa71a57c18a" xlink:href="art-20260930.xsd#art_MassillonAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019feccd-50e8-7c1f-9921-35254203d071" xlink:to="loc_art_MassillonAcquisitionMember_019feccd-50e8-722f-9edf-7aa71a57c18a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_HoustonWarehouseAcquisitionMember_019feccd-50e8-7c04-97e1-612896d69288" xlink:href="art-20260930.xsd#art_HoustonWarehouseAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019feccd-50e8-7c1f-9921-35254203d071" xlink:to="loc_art_HoustonWarehouseAcquisitionMember_019feccd-50e8-7c04-97e1-612896d69288" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-50e8-768d-bc71-60e224cd96c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019feccd-50e8-7fc9-8cae-467774784ec8" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-50e8-768d-bc71-60e224cd96c3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019feccd-50e8-768d-bc71-60e224cd96c3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-50e8-768d-bc71-60e224cd96c3" xlink:to="loc_us-gaap_SegmentDomain_019feccd-50e8-768d-bc71-60e224cd96c3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019feccd-50e8-7678-a206-37227526978e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-50e8-768d-bc71-60e224cd96c3" xlink:to="loc_us-gaap_SegmentDomain_019feccd-50e8-7678-a206-37227526978e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_WarehouseSegmentMember_019feccd-50e8-75bc-9736-8dafe8f5f181" xlink:href="art-20260930.xsd#art_WarehouseSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019feccd-50e8-7678-a206-37227526978e" xlink:to="loc_art_WarehouseSegmentMember_019feccd-50e8-75bc-9736-8dafe8f5f181" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019feccd-50e8-78bf-9564-5fd7e37b118c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019feccd-50e8-7972-93c6-83005b0e231b" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019feccd-50e8-78bf-9564-5fd7e37b118c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019feccd-50e8-76b3-a63a-eb93f26a95a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019feccd-50e8-7972-93c6-83005b0e231b" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019feccd-50e8-76b3-a63a-eb93f26a95a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019feccd-50e8-7804-b6d7-09c4ba4935fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019feccd-50e8-7972-93c6-83005b0e231b" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019feccd-50e8-7804-b6d7-09c4ba4935fc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019feccd-50e8-7e10-ba07-d0b46ecd268a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019feccd-50e8-7972-93c6-83005b0e231b" xlink:to="loc_us-gaap_Goodwill_019feccd-50e8-7e10-ba07-d0b46ecd268a" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DebtScheduleofOurOutstandingIndebtednessDetails" xlink:type="simple" xlink:href="art-20260930.xsd#DebtScheduleofOurOutstandingIndebtednessDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DebtScheduleofOurOutstandingIndebtednessDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7b4e-b1d4-cd82c866c4ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7d2b-955b-eee7555fd793" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7b4e-b1d4-cd82c866c4ee" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7d2b-955b-eee7555fd793" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-72c0-ad1e-b397e0eec015" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7d2b-955b-eee7555fd793" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-72c0-ad1e-b397e0eec015" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-72c0-ad1e-b397e0eec015_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-72c0-ad1e-b397e0eec015" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-72c0-ad1e-b397e0eec015_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7128-acb4-66a641b41abd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-72c0-ad1e-b397e0eec015" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7128-acb4-66a641b41abd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredNotesMember_019feccd-50e9-765b-a956-cab9b6327c24" xlink:href="art-20260930.xsd#art_SeniorUnsecuredNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7128-acb4-66a641b41abd" xlink:to="loc_art_SeniorUnsecuredNotesMember_019feccd-50e9-765b-a956-cab9b6327c24" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A20222020SeniorUnsecuredTermLoanAMember_019feccd-50e9-7865-b2f4-3dfb1a63f596" xlink:href="art-20260930.xsd#art_A20222020SeniorUnsecuredTermLoanAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7128-acb4-66a641b41abd" xlink:to="loc_art_A20222020SeniorUnsecuredTermLoanAMember_019feccd-50e9-7865-b2f4-3dfb1a63f596" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilityMember_019feccd-50e9-72ad-8fae-5cc0ea0cfc81" xlink:href="art-20260930.xsd#art_A20222020SeniorUnsecuredRevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7128-acb4-66a641b41abd" xlink:to="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilityMember_019feccd-50e9-72ad-8fae-5cc0ea0cfc81" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7475-b5b2-063531fd49a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7d2b-955b-eee7555fd793" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7475-b5b2-063531fd49a2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7475-b5b2-063531fd49a2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7475-b5b2-063531fd49a2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7475-b5b2-063531fd49a2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7b64-b31c-e4f5f5a98be7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7475-b5b2-063531fd49a2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7b64-b31c-e4f5f5a98be7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019feccd-50e9-72de-8d4c-e8fa10ba14c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7b64-b31c-e4f5f5a98be7" xlink:to="loc_us-gaap_SeniorNotesMember_019feccd-50e9-72de-8d4c-e8fa10ba14c3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MediumTermNotesMember_019feccd-50e9-734a-a841-ac8f1f732fa9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MediumTermNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7b64-b31c-e4f5f5a98be7" xlink:to="loc_us-gaap_MediumTermNotesMember_019feccd-50e9-734a-a841-ac8f1f732fa9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019feccd-50e9-7ac8-ae07-4431b0dedbec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7b64-b31c-e4f5f5a98be7" xlink:to="loc_us-gaap_LineOfCreditMember_019feccd-50e9-7ac8-ae07-4431b0dedbec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_MortgagesSeniorNotesandMediumTermNotesMember_019feccd-50e9-7e6a-9b39-acbfc47c8fd3" xlink:href="art-20260930.xsd#art_MortgagesSeniorNotesandMediumTermNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7b64-b31c-e4f5f5a98be7" xlink:to="loc_art_MortgagesSeniorNotesandMediumTermNotesMember_019feccd-50e9-7e6a-9b39-acbfc47c8fd3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-7f9a-9840-35d4cad0e6ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7b4e-b1d4-cd82c866c4ee" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-7f9a-9840-35d4cad0e6ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019feccd-50e9-74c0-b769-c8eae7ece06a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7b4e-b1d4-cd82c866c4ee" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019feccd-50e9-74c0-b769-c8eae7ece06a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019feccd-50e9-7c1d-883c-73f0fd69e2f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7b4e-b1d4-cd82c866c4ee" xlink:to="loc_us-gaap_LongTermDebt_019feccd-50e9-7c1d-883c-73f0fd69e2f7" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DebtScheduleofSeniorUnsecuredNotesDetails" xlink:type="simple" xlink:href="art-20260930.xsd#DebtScheduleofSeniorUnsecuredNotesDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DebtScheduleofSeniorUnsecuredNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7acc-99cd-f6ff8dee74f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-77d0-b473-43253db3eb5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7acc-99cd-f6ff8dee74f8" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-77d0-b473-43253db3eb5f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7754-9dd4-bf5d544eace4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-77d0-b473-43253db3eb5f" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7754-9dd4-bf5d544eace4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7754-9dd4-bf5d544eace4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7754-9dd4-bf5d544eace4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7754-9dd4-bf5d544eace4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7754-9dd4-bf5d544eace4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PrivateSeniorUnsecuredSeriesANotesDue2026Member_019feccd-50e9-7fb8-9312-c07edfd58d27" xlink:href="art-20260930.xsd#art_PrivateSeniorUnsecuredSeriesANotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_PrivateSeniorUnsecuredSeriesANotesDue2026Member_019feccd-50e9-7fb8-9312-c07edfd58d27" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PrivateSeniorUnsecuredSeriesBNotesDue2029Member_019feccd-50e9-79d9-ab52-3bebc20102e9" xlink:href="art-20260930.xsd#art_PrivateSeniorUnsecuredSeriesBNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_PrivateSeniorUnsecuredSeriesBNotesDue2029Member_019feccd-50e9-79d9-ab52-3bebc20102e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PrivateSeniorUnsecuredSeriesCNotesDue2030Member_019feccd-50e9-75e0-9849-9de5bef18d6a" xlink:href="art-20260930.xsd#art_PrivateSeniorUnsecuredSeriesCNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_PrivateSeniorUnsecuredSeriesCNotesDue2030Member_019feccd-50e9-75e0-9849-9de5bef18d6a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PrivateSeniorUnsecuredSeriesDNotesDue2031Member_019feccd-50e9-7bc6-a0d2-05a8208d5285" xlink:href="art-20260930.xsd#art_PrivateSeniorUnsecuredSeriesDNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_PrivateSeniorUnsecuredSeriesDNotesDue2031Member_019feccd-50e9-7bc6-a0d2-05a8208d5285" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PrivateSeniorUnsecuredSeriesENotesDue2033Member_019feccd-50e9-7a45-a4d0-d14c2e8a426c" xlink:href="art-20260930.xsd#art_PrivateSeniorUnsecuredSeriesENotesDue2033Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_PrivateSeniorUnsecuredSeriesENotesDue2033Member_019feccd-50e9-7a45-a4d0-d14c2e8a426c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PublicDebtIssuance5.600NotesMember_019feccd-50e9-7699-bcc8-133dbd06e999" xlink:href="art-20260930.xsd#art_PublicDebtIssuance5.600NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_PublicDebtIssuance5.600NotesMember_019feccd-50e9-7699-bcc8-133dbd06e999" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PublicDebtIssuance5.409NotesMember_019feccd-50e9-729e-a906-8d72fd5eaa7a" xlink:href="art-20260930.xsd#art_PublicDebtIssuance5.409NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_PublicDebtIssuance5.409NotesMember_019feccd-50e9-729e-a906-8d72fd5eaa7a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredNotesMember_019feccd-50e9-7412-90c5-2d8283255f50" xlink:href="art-20260930.xsd#art_SeniorUnsecuredNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_SeniorUnsecuredNotesMember_019feccd-50e9-7412-90c5-2d8283255f50" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember_019feccd-50e9-77bf-a8ac-e1ff887df75f" xlink:href="art-20260930.xsd#art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7ab9-85ef-7bbce57e6b2f" xlink:to="loc_art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember_019feccd-50e9-77bf-a8ac-e1ff887df75f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7bf7-93d7-db54db5dd272" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-77d0-b473-43253db3eb5f" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7bf7-93d7-db54db5dd272" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7bf7-93d7-db54db5dd272_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7bf7-93d7-db54db5dd272" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7bf7-93d7-db54db5dd272_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-74ab-90eb-6c2ecb747f82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7bf7-93d7-db54db5dd272" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-74ab-90eb-6c2ecb747f82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019feccd-50e9-7687-929a-cb491f7b3add" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-74ab-90eb-6c2ecb747f82" xlink:to="loc_us-gaap_SeniorNotesMember_019feccd-50e9-7687-929a-cb491f7b3add" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019feccd-50e9-76bc-9cfd-aa0478a6bd39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-74ab-90eb-6c2ecb747f82" xlink:to="loc_us-gaap_LineOfCreditMember_019feccd-50e9-76bc-9cfd-aa0478a6bd39" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019feccd-50e9-7145-9fcb-516d7fe7adf1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7acc-99cd-f6ff8dee74f8" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019feccd-50e9-7145-9fcb-516d7fe7adf1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019feccd-50e9-71d5-9c1f-94af8997c4f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7acc-99cd-f6ff8dee74f8" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019feccd-50e9-71d5-9c1f-94af8997c4f2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-753d-93ea-c4e17f23cc9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7acc-99cd-f6ff8dee74f8" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-753d-93ea-c4e17f23cc9c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019feccd-50e9-7b7f-99a5-4ae6b50942f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7acc-99cd-f6ff8dee74f8" xlink:to="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019feccd-50e9-7b7f-99a5-4ae6b50942f0" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DebtScheduleofSeniorUnsecuredTermLoansDetails" xlink:type="simple" xlink:href="art-20260930.xsd#DebtScheduleofSeniorUnsecuredTermLoansDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DebtScheduleofSeniorUnsecuredTermLoansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-757d-88ac-2c0be40f19ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7d8b-9933-efabc40ee103" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-757d-88ac-2c0be40f19ab" xlink:to="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7d8b-9933-efabc40ee103" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7a16-b926-68010baee428" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7d8b-9933-efabc40ee103" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7a16-b926-68010baee428" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7a16-b926-68010baee428_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7a16-b926-68010baee428" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7a16-b926-68010baee428_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7a16-b926-68010baee428" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A2025UnsecuredTermLoanDueSeptember2026Member_019feccd-50e9-7974-aaab-8ed825bc2924" xlink:href="art-20260930.xsd#art_A2025UnsecuredTermLoanDueSeptember2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:to="loc_art_A2025UnsecuredTermLoanDueSeptember2026Member_019feccd-50e9-7974-aaab-8ed825bc2924" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AUDTermLoanFacilityMember_019feccd-50e9-73e9-a72a-3fac61d4d2ba" xlink:href="art-20260930.xsd#art_AUDTermLoanFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:to="loc_art_AUDTermLoanFacilityMember_019feccd-50e9-73e9-a72a-3fac61d4d2ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA1Member_019feccd-50e9-76bb-839b-9383c455b16e" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:to="loc_art_SeniorUnsecuredTermLoanA1Member_019feccd-50e9-76bb-839b-9383c455b16e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA2Member_019feccd-50e9-7384-af52-0342ca30b91e" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:to="loc_art_SeniorUnsecuredTermLoanA2Member_019feccd-50e9-7384-af52-0342ca30b91e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA3Member_019feccd-50e9-7ba6-8f10-e83994e3dc45" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:to="loc_art_SeniorUnsecuredTermLoanA3Member_019feccd-50e9-7ba6-8f10-e83994e3dc45" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A20222020SeniorUnsecuredTermLoanAMember_019feccd-50e9-724f-82fe-a3e7271976a4" xlink:href="art-20260930.xsd#art_A20222020SeniorUnsecuredTermLoanAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:to="loc_art_A20222020SeniorUnsecuredTermLoanAMember_019feccd-50e9-724f-82fe-a3e7271976a4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredRevolvingCreditFacilitiesTranche2Member_019feccd-50e9-7b7e-bc0c-05c90011caff" xlink:href="art-20260930.xsd#art_SeniorUnsecuredRevolvingCreditFacilitiesTranche2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7b7e-ba0c-56bb5d91e104" xlink:to="loc_art_SeniorUnsecuredRevolvingCreditFacilitiesTranche2Member_019feccd-50e9-7b7e-bc0c-05c90011caff" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-72d1-be65-71a6fa8f5128" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7d8b-9933-efabc40ee103" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-72d1-be65-71a6fa8f5128" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-72d1-be65-71a6fa8f5128_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-72d1-be65-71a6fa8f5128" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-72d1-be65-71a6fa8f5128_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7d2d-aad8-329dadc6c7b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-72d1-be65-71a6fa8f5128" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7d2d-aad8-329dadc6c7b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MediumTermNotesMember_019feccd-50e9-76db-91a1-c2afcf016cee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MediumTermNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7d2d-aad8-329dadc6c7b4" xlink:to="loc_us-gaap_MediumTermNotesMember_019feccd-50e9-76db-91a1-c2afcf016cee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DelayedDrawFacilityMember_019feccd-50e9-7caf-8d73-b88fbdc7b199" xlink:href="art-20260930.xsd#art_DelayedDrawFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7d2d-aad8-329dadc6c7b4" xlink:to="loc_art_DelayedDrawFacilityMember_019feccd-50e9-7caf-8d73-b88fbdc7b199" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019feccd-50e9-75ea-99fb-8d86076b52a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7d2d-aad8-329dadc6c7b4" xlink:to="loc_us-gaap_LineOfCreditMember_019feccd-50e9-75ea-99fb-8d86076b52a5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019feccd-50e9-7b68-a3eb-22ac71e4be33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7d8b-9933-efabc40ee103" xlink:to="loc_us-gaap_VariableRateAxis_019feccd-50e9-7b68-a3eb-22ac71e4be33" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019feccd-50e9-7b68-a3eb-22ac71e4be33_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_019feccd-50e9-7b68-a3eb-22ac71e4be33" xlink:to="loc_us-gaap_VariableRateDomain_019feccd-50e9-7b68-a3eb-22ac71e4be33_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019feccd-50e9-7d3e-a813-df77d59e70bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_019feccd-50e9-7b68-a3eb-22ac71e4be33" xlink:to="loc_us-gaap_VariableRateDomain_019feccd-50e9-7d3e-a813-df77d59e70bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019feccd-50e9-71a9-aada-10d3f041f7cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredOvernightFinancingRateSofrMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019feccd-50e9-7d3e-a813-df77d59e70bb" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019feccd-50e9-71a9-aada-10d3f041f7cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BankBillSwapRateMember_019feccd-50e9-72a4-a29a-71035349a462" xlink:href="art-20260930.xsd#art_BankBillSwapRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019feccd-50e9-7d3e-a813-df77d59e70bb" xlink:to="loc_art_BankBillSwapRateMember_019feccd-50e9-72a4-a29a-71035349a462" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_CanadianDollarOfferedRateMember_019feccd-50e9-7fb6-a9fb-22051a3ddfeb" xlink:href="art-20260930.xsd#art_CanadianDollarOfferedRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019feccd-50e9-7d3e-a813-df77d59e70bb" xlink:to="loc_art_CanadianDollarOfferedRateMember_019feccd-50e9-7fb6-a9fb-22051a3ddfeb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7b33-be98-acbcfde9cc8b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7d8b-9933-efabc40ee103" xlink:to="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7b33-be98-acbcfde9cc8b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7b33-be98-acbcfde9cc8b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7b33-be98-acbcfde9cc8b" xlink:to="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7b33-be98-acbcfde9cc8b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7e7b-b4b7-4b4ce2a58c22" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7b33-be98-acbcfde9cc8b" xlink:to="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7e7b-b4b7-4b4ce2a58c22" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019feccd-50e9-7a42-8948-26ac59a676f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7e7b-b4b7-4b4ce2a58c22" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019feccd-50e9-7a42-8948-26ac59a676f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019feccd-50e9-79f3-8529-d3e87f7e78b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-757d-88ac-2c0be40f19ab" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019feccd-50e9-79f3-8529-d3e87f7e78b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-79c3-91f9-2c705865dfbe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-757d-88ac-2c0be40f19ab" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-79c3-91f9-2c705865dfbe" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DebtScheduleofSeniorUnsecuredRevolvingCreditFacilityDetails" xlink:type="simple" xlink:href="art-20260930.xsd#DebtScheduleofSeniorUnsecuredRevolvingCreditFacilityDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DebtScheduleofSeniorUnsecuredRevolvingCreditFacilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7588-a25f-0d69a235f1a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7192-94ef-af094fc3f474" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7588-a25f-0d69a235f1a7" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7192-94ef-af094fc3f474" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7d92-94b7-237d1958c18f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7192-94ef-af094fc3f474" xlink:to="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7d92-94b7-237d1958c18f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7d92-94b7-237d1958c18f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7d92-94b7-237d1958c18f" xlink:to="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7d92-94b7-237d1958c18f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-77be-8f44-bf8033614505" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7d92-94b7-237d1958c18f" xlink:to="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-77be-8f44-bf8033614505" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019feccd-50e9-7258-8072-f5afcc037009" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-77be-8f44-bf8033614505" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019feccd-50e9-7258-8072-f5afcc037009" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-73cd-9b48-9d15cab2f382" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7192-94ef-af094fc3f474" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-73cd-9b48-9d15cab2f382" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-73cd-9b48-9d15cab2f382_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-73cd-9b48-9d15cab2f382" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-73cd-9b48-9d15cab2f382_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-73cd-9b48-9d15cab2f382" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche3Member_019feccd-50e9-7c41-bae7-58dc675342fc" xlink:href="art-20260930.xsd#art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:to="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche3Member_019feccd-50e9-7c41-bae7-58dc675342fc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche4Member_019feccd-50e9-723d-a344-3e6a413934d3" xlink:href="art-20260930.xsd#art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche4Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:to="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche4Member_019feccd-50e9-723d-a344-3e6a413934d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche1Member_019feccd-50e9-7838-9406-d9b301ae6bf3" xlink:href="art-20260930.xsd#art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:to="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche1Member_019feccd-50e9-7838-9406-d9b301ae6bf3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche5Member_019feccd-50e9-7dc6-a463-7561a73fac84" xlink:href="art-20260930.xsd#art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche5Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:to="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche5Member_019feccd-50e9-7dc6-a463-7561a73fac84" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche6Member_019feccd-50e9-7e34-99a4-61f45a72c38c" xlink:href="art-20260930.xsd#art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche6Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:to="loc_art_A20222020SeniorUnsecuredRevolvingCreditFacilitiesTranche6Member_019feccd-50e9-7e34-99a4-61f45a72c38c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredRevolvingCreditFacilitiesTranche2Member_019feccd-50e9-7a40-9a88-54770b96866f" xlink:href="art-20260930.xsd#art_SeniorUnsecuredRevolvingCreditFacilitiesTranche2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:to="loc_art_SeniorUnsecuredRevolvingCreditFacilitiesTranche2Member_019feccd-50e9-7a40-9a88-54770b96866f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA1Member_01a08221-cf88-737e-b652-2957cb91d9f1" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-769f-8fba-4ccf5b0b6da9" xlink:to="loc_art_SeniorUnsecuredTermLoanA1Member_01a08221-cf88-737e-b652-2957cb91d9f1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-764a-bbbd-11f8fd7e9871" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7192-94ef-af094fc3f474" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-764a-bbbd-11f8fd7e9871" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-764a-bbbd-11f8fd7e9871_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-764a-bbbd-11f8fd7e9871" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-764a-bbbd-11f8fd7e9871_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-710d-81fe-519eef9d57eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-764a-bbbd-11f8fd7e9871" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-710d-81fe-519eef9d57eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019feccd-50e9-7912-899a-b57a7f14114a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-710d-81fe-519eef9d57eb" xlink:to="loc_us-gaap_LineOfCreditMember_019feccd-50e9-7912-899a-b57a7f14114a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019feccd-50e9-758d-9be3-3affbf279603" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019feccd-50e9-7192-94ef-af094fc3f474" xlink:to="loc_us-gaap_VariableRateAxis_019feccd-50e9-758d-9be3-3affbf279603" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019feccd-50e9-758d-9be3-3affbf279603_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_019feccd-50e9-758d-9be3-3affbf279603" xlink:to="loc_us-gaap_VariableRateDomain_019feccd-50e9-758d-9be3-3affbf279603_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019feccd-50e9-7f08-851b-e7b60f87535b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_019feccd-50e9-758d-9be3-3affbf279603" xlink:to="loc_us-gaap_VariableRateDomain_019feccd-50e9-7f08-851b-e7b60f87535b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SecuredOvernightFinancingAdjustmentRateMember_019feccd-50e9-7f85-b617-8e876339c5e6" xlink:href="art-20260930.xsd#art_SecuredOvernightFinancingAdjustmentRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019feccd-50e9-7f08-851b-e7b60f87535b" xlink:to="loc_art_SecuredOvernightFinancingAdjustmentRateMember_019feccd-50e9-7f85-b617-8e876339c5e6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BankBillSwapRateMember_019feccd-50e9-77da-bfbe-c831aa096120" xlink:href="art-20260930.xsd#art_BankBillSwapRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019feccd-50e9-7f08-851b-e7b60f87535b" xlink:to="loc_art_BankBillSwapRateMember_019feccd-50e9-77da-bfbe-c831aa096120" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_CanadianDollarOfferedRateMember_019feccd-50e9-7d4d-98b6-60f07a8521c4" xlink:href="art-20260930.xsd#art_CanadianDollarOfferedRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019feccd-50e9-7f08-851b-e7b60f87535b" xlink:to="loc_art_CanadianDollarOfferedRateMember_019feccd-50e9-7d4d-98b6-60f07a8521c4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_EuroInterbankOfferedRateMember_019feccd-50e9-713e-b35b-6607e15c3aca" xlink:href="art-20260930.xsd#art_EuroInterbankOfferedRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019feccd-50e9-7f08-851b-e7b60f87535b" xlink:to="loc_art_EuroInterbankOfferedRateMember_019feccd-50e9-713e-b35b-6607e15c3aca" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BankBillReferenceRateMember_019feccd-50e9-7798-9f22-8b10ea37d7c4" xlink:href="art-20260930.xsd#art_BankBillReferenceRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019feccd-50e9-7f08-851b-e7b60f87535b" xlink:to="loc_art_BankBillReferenceRateMember_019feccd-50e9-7798-9f22-8b10ea37d7c4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019feccd-50e9-79cb-9d33-3a08cf025584" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7588-a25f-0d69a235f1a7" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019feccd-50e9-79cb-9d33-3a08cf025584" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-711e-a01f-c5ec7ede671c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7588-a25f-0d69a235f1a7" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-711e-a01f-c5ec7ede671c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DebtInstrumentNumberOfExtensions_019feccd-50e9-7fc6-96dd-a173eac844f6" xlink:href="art-20260930.xsd#art_DebtInstrumentNumberOfExtensions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7588-a25f-0d69a235f1a7" xlink:to="loc_art_DebtInstrumentNumberOfExtensions_019feccd-50e9-7fc6-96dd-a173eac844f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DebtInstrumentExtensionTerm_01a08221-cf88-786d-b354-da26e019dada" xlink:href="art-20260930.xsd#art_DebtInstrumentExtensionTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019feccd-50e9-7588-a25f-0d69a235f1a7" xlink:to="loc_art_DebtInstrumentExtensionTerm_01a08221-cf88-786d-b354-da26e019dada" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DebtNarrativeDetails" xlink:type="simple" xlink:href="art-20260930.xsd#DebtNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7485-b035-5989414d01e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7485-b035-5989414d01e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7485-b035-5989414d01e4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7485-b035-5989414d01e4" xlink:to="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7485-b035-5989414d01e4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-78b8-a570-d88ceb03b279" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7485-b035-5989414d01e4" xlink:to="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-78b8-a570-d88ceb03b279" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019feccd-50e9-713f-a8f3-9d1b204c1067" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-78b8-a570-d88ceb03b279" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019feccd-50e9-713f-a8f3-9d1b204c1067" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7520-b70d-7c29aa5aa72c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7520-b70d-7c29aa5aa72c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7520-b70d-7c29aa5aa72c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7520-b70d-7c29aa5aa72c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7520-b70d-7c29aa5aa72c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7520-b70d-7c29aa5aa72c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AmendedAndRestatedSyndicatedFacilityAgreementMember_019feccd-50e9-75e6-923d-d8ac2abb419c" xlink:href="art-20260930.xsd#art_AmendedAndRestatedSyndicatedFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_AmendedAndRestatedSyndicatedFacilityAgreementMember_019feccd-50e9-75e6-923d-d8ac2abb419c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AmendedAndRestatedAUDTermLoanMember_019feccd-50e9-70a6-913f-62a38ead6080" xlink:href="art-20260930.xsd#art_AmendedAndRestatedAUDTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_AmendedAndRestatedAUDTermLoanMember_019feccd-50e9-70a6-913f-62a38ead6080" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA1Member_019feccd-50e9-774e-af3e-a79d8fe101a0" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_SeniorUnsecuredTermLoanA1Member_019feccd-50e9-774e-af3e-a79d8fe101a0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA2Member_019feccd-50e9-7e93-8d30-ce08c21cb11e" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_SeniorUnsecuredTermLoanA2Member_019feccd-50e9-7e93-8d30-ce08c21cb11e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AmendedAndRestatedPriorAgreement08232022Member_019feccd-50e9-7893-8906-3f8302ca9c38" xlink:href="art-20260930.xsd#art_AmendedAndRestatedPriorAgreement08232022Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_AmendedAndRestatedPriorAgreement08232022Member_019feccd-50e9-7893-8906-3f8302ca9c38" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA3Member_019feccd-50e9-771f-8fe8-1ca01d008848" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_SeniorUnsecuredTermLoanA3Member_019feccd-50e9-771f-8fe8-1ca01d008848" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A2025UnsecuredTermLoanDueJune2026Member_019feccd-50e9-7351-8f9f-f7d3d4377e72" xlink:href="art-20260930.xsd#art_A2025UnsecuredTermLoanDueJune2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_A2025UnsecuredTermLoanDueJune2026Member_019feccd-50e9-7351-8f9f-f7d3d4377e72" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_Amended2025UnsecuredTermLoanDueJune2026Member_019feccd-50e9-7f71-9fbf-259c53ac2576" xlink:href="art-20260930.xsd#art_Amended2025UnsecuredTermLoanDueJune2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_Amended2025UnsecuredTermLoanDueJune2026Member_019feccd-50e9-7f71-9fbf-259c53ac2576" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AUDTermLoanFacilityMember_019feccd-50e9-7470-aeb0-f79c71d3c49a" xlink:href="art-20260930.xsd#art_AUDTermLoanFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_AUDTermLoanFacilityMember_019feccd-50e9-7470-aeb0-f79c71d3c49a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember_019feccd-50e9-7897-8db5-1a714ca58726" xlink:href="art-20260930.xsd#art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember_019feccd-50e9-7897-8db5-1a714ca58726" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PublicDebtIssuance5.600NotesMember_019feccd-50e9-76a7-abc1-47e1f23d2eba" xlink:href="art-20260930.xsd#art_PublicDebtIssuance5.600NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_PublicDebtIssuance5.600NotesMember_019feccd-50e9-76a7-abc1-47e1f23d2eba" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7a7d-b356-6ab4de50fd25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7a7d-b356-6ab4de50fd25" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7a7d-b356-6ab4de50fd25_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7a7d-b356-6ab4de50fd25" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7a7d-b356-6ab4de50fd25_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7a7d-b356-6ab4de50fd25" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019feccd-50e9-7390-8485-65a641562382" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:to="loc_us-gaap_LineOfCreditMember_019feccd-50e9-7390-8485-65a641562382" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MediumTermNotesMember_019feccd-50e9-7ffa-91e9-5fcacae98569" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MediumTermNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:to="loc_us-gaap_MediumTermNotesMember_019feccd-50e9-7ffa-91e9-5fcacae98569" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019feccd-50e9-72e9-bd89-5eda7d90ff6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:to="loc_us-gaap_SeniorNotesMember_019feccd-50e9-72e9-bd89-5eda7d90ff6f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_019feccd-50e9-7221-ba97-f74ade71036d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CurrencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_srt_CurrencyAxis_019feccd-50e9-7221-ba97-f74ade71036d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_019feccd-50e9-7221-ba97-f74ade71036d_default" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_019feccd-50e9-7221-ba97-f74ade71036d" xlink:to="loc_currency_AllCurrenciesDomain_019feccd-50e9-7221-ba97-f74ade71036d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_019feccd-50e9-7b30-8878-e0cfe294afb8" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_019feccd-50e9-7221-ba97-f74ade71036d" xlink:to="loc_currency_AllCurrenciesDomain_019feccd-50e9-7b30-8878-e0cfe294afb8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_USD_019feccd-50e9-72fb-bf1e-b0ae39b2b22f" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_USD"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_019feccd-50e9-7b30-8878-e0cfe294afb8" xlink:to="loc_currency_USD_019feccd-50e9-72fb-bf1e-b0ae39b2b22f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_019feccd-50e9-7740-89a1-fc3d3ecd06c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_019feccd-50e9-7740-89a1-fc3d3ecd06c9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_019feccd-50e9-7056-8d91-e7e7df879ad5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_019feccd-50e9-7056-8d91-e7e7df879ad5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-71f2-985d-60722e16a396" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-71f2-985d-60722e16a396" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DebtInstrumentNumberOfExtension_019feccd-50e9-78d4-bced-ae0e4b68ba85" xlink:href="art-20260930.xsd#art_DebtInstrumentNumberOfExtension"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_art_DebtInstrumentNumberOfExtension_019feccd-50e9-78d4-bced-ae0e4b68ba85" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DebtInstrumentExtensionTerm_01a0a2a7-dc0a-710a-aef9-d9d8b8d71fa9" xlink:href="art-20260930.xsd#art_DebtInstrumentExtensionTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_art_DebtInstrumentExtensionTerm_01a0a2a7-dc0a-710a-aef9-d9d8b8d71fa9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019feccd-50e9-757a-bb20-0c9a734d4349" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019feccd-50e9-757a-bb20-0c9a734d4349" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019feccd-50e9-7806-850e-b1454e6b6a06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019feccd-50e9-7806-850e-b1454e6b6a06" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DebtInstrumentNumberOfExtensions_019feccd-50e9-7f82-8137-376d18542b4e" xlink:href="art-20260930.xsd#art_DebtInstrumentNumberOfExtensions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_art_DebtInstrumentNumberOfExtensions_019feccd-50e9-7f82-8137-376d18542b4e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019feccd-50e9-72c1-872c-0d0bf03e5197" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019feccd-50e9-72c1-872c-0d0bf03e5197" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019feccd-50e9-787a-bc3c-026e9df3587a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019feccd-50e9-787a-bc3c-026e9df3587a" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DebtNarrativeDetails_1" xlink:type="simple" xlink:href="art-20260930.xsd#DebtNarrativeDetails_1"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DebtNarrativeDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7485-b035-5989414d01e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7485-b035-5989414d01e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7485-b035-5989414d01e4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7485-b035-5989414d01e4" xlink:to="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-7485-b035-5989414d01e4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-78b8-a570-d88ceb03b279" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019feccd-50e9-7485-b035-5989414d01e4" xlink:to="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-78b8-a570-d88ceb03b279" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019feccd-50e9-713f-a8f3-9d1b204c1067" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019feccd-50e9-78b8-a570-d88ceb03b279" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019feccd-50e9-713f-a8f3-9d1b204c1067" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7520-b70d-7c29aa5aa72c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7520-b70d-7c29aa5aa72c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7520-b70d-7c29aa5aa72c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7520-b70d-7c29aa5aa72c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7520-b70d-7c29aa5aa72c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7520-b70d-7c29aa5aa72c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AmendedAndRestatedSyndicatedFacilityAgreementMember_019feccd-50e9-75e6-923d-d8ac2abb419c" xlink:href="art-20260930.xsd#art_AmendedAndRestatedSyndicatedFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_AmendedAndRestatedSyndicatedFacilityAgreementMember_019feccd-50e9-75e6-923d-d8ac2abb419c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AmendedAndRestatedAUDTermLoanMember_019feccd-50e9-70a6-913f-62a38ead6080" xlink:href="art-20260930.xsd#art_AmendedAndRestatedAUDTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_AmendedAndRestatedAUDTermLoanMember_019feccd-50e9-70a6-913f-62a38ead6080" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA1Member_019feccd-50e9-774e-af3e-a79d8fe101a0" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_SeniorUnsecuredTermLoanA1Member_019feccd-50e9-774e-af3e-a79d8fe101a0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA2Member_019feccd-50e9-7e93-8d30-ce08c21cb11e" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_SeniorUnsecuredTermLoanA2Member_019feccd-50e9-7e93-8d30-ce08c21cb11e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AmendedAndRestatedPriorAgreement08232022Member_019feccd-50e9-7893-8906-3f8302ca9c38" xlink:href="art-20260930.xsd#art_AmendedAndRestatedPriorAgreement08232022Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_AmendedAndRestatedPriorAgreement08232022Member_019feccd-50e9-7893-8906-3f8302ca9c38" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeniorUnsecuredTermLoanA3Member_019feccd-50e9-771f-8fe8-1ca01d008848" xlink:href="art-20260930.xsd#art_SeniorUnsecuredTermLoanA3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_SeniorUnsecuredTermLoanA3Member_019feccd-50e9-771f-8fe8-1ca01d008848" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A2025UnsecuredTermLoanDueJune2026Member_019feccd-50e9-7351-8f9f-f7d3d4377e72" xlink:href="art-20260930.xsd#art_A2025UnsecuredTermLoanDueJune2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_A2025UnsecuredTermLoanDueJune2026Member_019feccd-50e9-7351-8f9f-f7d3d4377e72" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_Amended2025UnsecuredTermLoanDueJune2026Member_019feccd-50e9-7f71-9fbf-259c53ac2576" xlink:href="art-20260930.xsd#art_Amended2025UnsecuredTermLoanDueJune2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_Amended2025UnsecuredTermLoanDueJune2026Member_019feccd-50e9-7f71-9fbf-259c53ac2576" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AUDTermLoanFacilityMember_019feccd-50e9-7470-aeb0-f79c71d3c49a" xlink:href="art-20260930.xsd#art_AUDTermLoanFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_AUDTermLoanFacilityMember_019feccd-50e9-7470-aeb0-f79c71d3c49a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember_019feccd-50e9-7897-8db5-1a714ca58726" xlink:href="art-20260930.xsd#art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_TwentyTwentyTwoSeniorUnsecuredRevolvingCreditFacilitiesMember_019feccd-50e9-7897-8db5-1a714ca58726" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PublicDebtIssuance5.600NotesMember_019feccd-50e9-76a7-abc1-47e1f23d2eba" xlink:href="art-20260930.xsd#art_PublicDebtIssuance5.600NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7164-8908-f7dfa69acf47" xlink:to="loc_art_PublicDebtIssuance5.600NotesMember_019feccd-50e9-76a7-abc1-47e1f23d2eba" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7a7d-b356-6ab4de50fd25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7a7d-b356-6ab4de50fd25" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7a7d-b356-6ab4de50fd25_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7a7d-b356-6ab4de50fd25" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7a7d-b356-6ab4de50fd25_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7a7d-b356-6ab4de50fd25" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019feccd-50e9-7390-8485-65a641562382" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:to="loc_us-gaap_LineOfCreditMember_019feccd-50e9-7390-8485-65a641562382" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MediumTermNotesMember_019feccd-50e9-7ffa-91e9-5fcacae98569" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MediumTermNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:to="loc_us-gaap_MediumTermNotesMember_019feccd-50e9-7ffa-91e9-5fcacae98569" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019feccd-50e9-72e9-bd89-5eda7d90ff6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7c8f-a99b-0d1bce2be5e4" xlink:to="loc_us-gaap_SeniorNotesMember_019feccd-50e9-72e9-bd89-5eda7d90ff6f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_019feccd-50e9-7221-ba97-f74ade71036d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CurrencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019feccd-50e9-7a2f-8591-2e4701a25890" xlink:to="loc_srt_CurrencyAxis_019feccd-50e9-7221-ba97-f74ade71036d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_019feccd-50e9-7221-ba97-f74ade71036d_default" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_019feccd-50e9-7221-ba97-f74ade71036d" xlink:to="loc_currency_AllCurrenciesDomain_019feccd-50e9-7221-ba97-f74ade71036d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_019feccd-50e9-7b30-8878-e0cfe294afb8" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_019feccd-50e9-7221-ba97-f74ade71036d" xlink:to="loc_currency_AllCurrenciesDomain_019feccd-50e9-7b30-8878-e0cfe294afb8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_USD_019feccd-50e9-72fb-bf1e-b0ae39b2b22f" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_USD"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_019feccd-50e9-7b30-8878-e0cfe294afb8" xlink:to="loc_currency_USD_019feccd-50e9-72fb-bf1e-b0ae39b2b22f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_019feccd-50e9-7056-8d91-e7e7df879ad5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_019feccd-50e9-7056-8d91-e7e7df879ad5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-71f2-985d-60722e16a396" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019feccd-50e9-71f2-985d-60722e16a396" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DebtInstrumentNumberOfExtension_019feccd-50e9-78d4-bced-ae0e4b68ba85" xlink:href="art-20260930.xsd#art_DebtInstrumentNumberOfExtension"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_art_DebtInstrumentNumberOfExtension_019feccd-50e9-78d4-bced-ae0e4b68ba85" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DebtInstrumentExtensionTerm_01a0a2a7-dc0a-710a-aef9-d9d8b8d71fa9" xlink:href="art-20260930.xsd#art_DebtInstrumentExtensionTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_art_DebtInstrumentExtensionTerm_01a0a2a7-dc0a-710a-aef9-d9d8b8d71fa9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019feccd-50e9-757a-bb20-0c9a734d4349" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019feccd-50e9-757a-bb20-0c9a734d4349" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019feccd-50e9-7806-850e-b1454e6b6a06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019feccd-50e9-7806-850e-b1454e6b6a06" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DebtInstrumentNumberOfExtensions_019feccd-50e9-7f82-8137-376d18542b4e" xlink:href="art-20260930.xsd#art_DebtInstrumentNumberOfExtensions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_art_DebtInstrumentNumberOfExtensions_019feccd-50e9-7f82-8137-376d18542b4e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019feccd-50e9-72c1-872c-0d0bf03e5197" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019feccd-50e9-72c1-872c-0d0bf03e5197" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019feccd-50e9-787a-bc3c-026e9df3587a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019feccd-50e9-783f-b380-545c6c1b4f3f" xlink:to="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019feccd-50e9-787a-bc3c-026e9df3587a" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DerivativeFinancialInstrumentsNarrativeDetails" xlink:type="simple" xlink:href="art-20260930.xsd#DerivativeFinancialInstrumentsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DerivativeFinancialInstrumentsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-797c-8e58-2325d175eeb6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-797c-8e58-2325d175eeb6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-797c-8e58-2325d175eeb6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-797c-8e58-2325d175eeb6" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-797c-8e58-2325d175eeb6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7007-aac6-e86c4e04ddb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-797c-8e58-2325d175eeb6" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7007-aac6-e86c4e04ddb9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeriesDAndSeriesENotesMember_019feccd-50e9-79b9-a715-8401f2dc5359" xlink:href="art-20260930.xsd#art_SeriesDAndSeriesENotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7007-aac6-e86c4e04ddb9" xlink:to="loc_art_SeriesDAndSeriesENotesMember_019feccd-50e9-79b9-a715-8401f2dc5359" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-798f-8611-6cfed9a0aa4e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-798f-8611-6cfed9a0aa4e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-798f-8611-6cfed9a0aa4e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-798f-8611-6cfed9a0aa4e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-798f-8611-6cfed9a0aa4e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-722b-a274-1d6db3cf5686" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-798f-8611-6cfed9a0aa4e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-722b-a274-1d6db3cf5686" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019feccd-50e9-71b5-a4b2-2cded0cfd947" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-722b-a274-1d6db3cf5686" xlink:to="loc_us-gaap_SeniorNotesMember_019feccd-50e9-71b5-a4b2-2cded0cfd947" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-77ba-aed3-d2c6191163a2" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-77ba-aed3-d2c6191163a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-77ba-aed3-d2c6191163a2_default" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-77ba-aed3-d2c6191163a2" xlink:to="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-77ba-aed3-d2c6191163a2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-77ba-aed3-d2c6191163a2" xlink:to="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement1MaturingJuly302027Member_019feccd-50e9-7898-858c-e6349cbf1b38" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement1MaturingJuly302027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:to="loc_art_InterestRateSwapAgreement1MaturingJuly302027Member_019feccd-50e9-7898-858c-e6349cbf1b38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement2MaturingJuly302027Member_019feccd-50e9-7271-8c2e-cc1e8fdaa7cd" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement2MaturingJuly302027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:to="loc_art_InterestRateSwapAgreement2MaturingJuly302027Member_019feccd-50e9-7271-8c2e-cc1e8fdaa7cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement1MaturingDecember312027Member_019feccd-50e9-7cfd-86c6-805e3b4c066a" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement1MaturingDecember312027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:to="loc_art_InterestRateSwapAgreement1MaturingDecember312027Member_019feccd-50e9-7cfd-86c6-805e3b4c066a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7306-9dfa-2b3b21629a7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7306-9dfa-2b3b21629a7c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7306-9dfa-2b3b21629a7c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7306-9dfa-2b3b21629a7c" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7306-9dfa-2b3b21629a7c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7653-baa5-e1249708f588" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7306-9dfa-2b3b21629a7c" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7653-baa5-e1249708f588" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019feccd-50e9-7d7e-bc47-3735a1a9cc41" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7653-baa5-e1249708f588" xlink:to="loc_us-gaap_InterestRateSwapMember_019feccd-50e9-7d7e-bc47-3735a1a9cc41" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-719e-834e-e81dbb030556" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-719e-834e-e81dbb030556" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-719e-834e-e81dbb030556_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-719e-834e-e81dbb030556" xlink:to="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-719e-834e-e81dbb030556_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-72aa-83a2-85741d65b00d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-719e-834e-e81dbb030556" xlink:to="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-72aa-83a2-85741d65b00d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019feccd-50e9-7127-93a1-7b294f682e76" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-72aa-83a2-85741d65b00d" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019feccd-50e9-7127-93a1-7b294f682e76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019feccd-50e9-72ab-9bf0-9bf8c8426701" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019feccd-50e9-72ab-9bf0-9bf8c8426701" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DesignatedNonDerivativeAmountOfInvestmentHedgedLiability_019feccd-50e9-76f8-8bdc-071475b843ac" xlink:href="art-20260930.xsd#art_DesignatedNonDerivativeAmountOfInvestmentHedgedLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_art_DesignatedNonDerivativeAmountOfInvestmentHedgedLiability_019feccd-50e9-76f8-8bdc-071475b843ac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019feccd-50e9-7d80-a94f-7d0581c07679" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019feccd-50e9-7d80-a94f-7d0581c07679" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDerivativeInstrumentInvestingActivities_019feccd-50e9-704a-94cf-6db53a76ee9b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromDerivativeInstrumentInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_ProceedsFromDerivativeInstrumentInvestingActivities_019feccd-50e9-704a-94cf-6db53a76ee9b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainOnDerivative_019feccd-50e9-7cb7-b9cf-e5f5486c5739" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeGainOnDerivative"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_DerivativeGainOnDerivative_019feccd-50e9-7cb7-b9cf-e5f5486c5739" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings_019feccd-50e9-7154-8626-472e5a11aaad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings_019feccd-50e9-7154-8626-472e5a11aaad" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivatives_019feccd-50e9-7bac-814b-30f4bc75de4d" xlink:href="art-20260930.xsd#art_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivatives"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_art_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivatives_019feccd-50e9-7bac-814b-30f4bc75de4d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_019feccd-50e9-79ba-9563-eff36b4c812f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_019feccd-50e9-79ba-9563-eff36b4c812f" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DerivativeFinancialInstrumentsNarrativeDetails_1" xlink:type="simple" xlink:href="art-20260930.xsd#DerivativeFinancialInstrumentsNarrativeDetails_1"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DerivativeFinancialInstrumentsNarrativeDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-797c-8e58-2325d175eeb6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-797c-8e58-2325d175eeb6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-797c-8e58-2325d175eeb6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-797c-8e58-2325d175eeb6" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-797c-8e58-2325d175eeb6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7007-aac6-e86c4e04ddb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-797c-8e58-2325d175eeb6" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7007-aac6-e86c4e04ddb9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SeriesDAndSeriesENotesMember_019feccd-50e9-79b9-a715-8401f2dc5359" xlink:href="art-20260930.xsd#art_SeriesDAndSeriesENotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7007-aac6-e86c4e04ddb9" xlink:to="loc_art_SeriesDAndSeriesENotesMember_019feccd-50e9-79b9-a715-8401f2dc5359" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-798f-8611-6cfed9a0aa4e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-798f-8611-6cfed9a0aa4e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-798f-8611-6cfed9a0aa4e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-798f-8611-6cfed9a0aa4e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-798f-8611-6cfed9a0aa4e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-722b-a274-1d6db3cf5686" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-798f-8611-6cfed9a0aa4e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-722b-a274-1d6db3cf5686" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019feccd-50e9-71b5-a4b2-2cded0cfd947" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-722b-a274-1d6db3cf5686" xlink:to="loc_us-gaap_SeniorNotesMember_019feccd-50e9-71b5-a4b2-2cded0cfd947" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-77ba-aed3-d2c6191163a2" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-77ba-aed3-d2c6191163a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-77ba-aed3-d2c6191163a2_default" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-77ba-aed3-d2c6191163a2" xlink:to="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-77ba-aed3-d2c6191163a2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-77ba-aed3-d2c6191163a2" xlink:to="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement1MaturingJuly302027Member_019feccd-50e9-7898-858c-e6349cbf1b38" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement1MaturingJuly302027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:to="loc_art_InterestRateSwapAgreement1MaturingJuly302027Member_019feccd-50e9-7898-858c-e6349cbf1b38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement2MaturingJuly302027Member_019feccd-50e9-7271-8c2e-cc1e8fdaa7cd" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement2MaturingJuly302027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:to="loc_art_InterestRateSwapAgreement2MaturingJuly302027Member_019feccd-50e9-7271-8c2e-cc1e8fdaa7cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement1MaturingDecember312027Member_019feccd-50e9-7cfd-86c6-805e3b4c066a" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement1MaturingDecember312027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7dfe-a243-108ca4382f61" xlink:to="loc_art_InterestRateSwapAgreement1MaturingDecember312027Member_019feccd-50e9-7cfd-86c6-805e3b4c066a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7306-9dfa-2b3b21629a7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7306-9dfa-2b3b21629a7c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7306-9dfa-2b3b21629a7c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7306-9dfa-2b3b21629a7c" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7306-9dfa-2b3b21629a7c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7653-baa5-e1249708f588" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7306-9dfa-2b3b21629a7c" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7653-baa5-e1249708f588" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019feccd-50e9-7d7e-bc47-3735a1a9cc41" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7653-baa5-e1249708f588" xlink:to="loc_us-gaap_InterestRateSwapMember_019feccd-50e9-7d7e-bc47-3735a1a9cc41" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-719e-834e-e81dbb030556" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-77ff-9faf-269bb68c50aa" xlink:to="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-719e-834e-e81dbb030556" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-719e-834e-e81dbb030556_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-719e-834e-e81dbb030556" xlink:to="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-719e-834e-e81dbb030556_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-72aa-83a2-85741d65b00d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-719e-834e-e81dbb030556" xlink:to="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-72aa-83a2-85741d65b00d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019feccd-50e9-7127-93a1-7b294f682e76" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-72aa-83a2-85741d65b00d" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019feccd-50e9-7127-93a1-7b294f682e76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DesignatedNonDerivativeAmountOfInvestmentHedgedLiability_019feccd-50e9-76f8-8bdc-071475b843ac" xlink:href="art-20260930.xsd#art_DesignatedNonDerivativeAmountOfInvestmentHedgedLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_art_DesignatedNonDerivativeAmountOfInvestmentHedgedLiability_019feccd-50e9-76f8-8bdc-071475b843ac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019feccd-50e9-7d80-a94f-7d0581c07679" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019feccd-50e9-7d80-a94f-7d0581c07679" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDerivativeInstrumentInvestingActivities_019feccd-50e9-704a-94cf-6db53a76ee9b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromDerivativeInstrumentInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_ProceedsFromDerivativeInstrumentInvestingActivities_019feccd-50e9-704a-94cf-6db53a76ee9b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainOnDerivative_019feccd-50e9-7cb7-b9cf-e5f5486c5739" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeGainOnDerivative"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_DerivativeGainOnDerivative_019feccd-50e9-7cb7-b9cf-e5f5486c5739" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings_019feccd-50e9-7154-8626-472e5a11aaad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings_019feccd-50e9-7154-8626-472e5a11aaad" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivatives_019feccd-50e9-7bac-814b-30f4bc75de4d" xlink:href="art-20260930.xsd#art_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivatives"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_art_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivatives_019feccd-50e9-7bac-814b-30f4bc75de4d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_019feccd-50e9-79ba-9563-eff36b4c812f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-77c6-948d-cfe82e582288" xlink:to="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_019feccd-50e9-79ba-9563-eff36b4c812f" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DerivativeFinancialInstrumentsScheduleofInterestRateSwapsOutstandingDetails" xlink:type="simple" xlink:href="art-20260930.xsd#DerivativeFinancialInstrumentsScheduleofInterestRateSwapsOutstandingDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DerivativeFinancialInstrumentsScheduleofInterestRateSwapsOutstandingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019feccd-50e9-752f-9127-08a1e7ea136a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019feccd-50e9-7a7b-b364-227bf7d9e6ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-752f-9127-08a1e7ea136a" xlink:to="loc_us-gaap_DerivativeTable_019feccd-50e9-7a7b-b364-227bf7d9e6ec" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-7501-9a7f-144b9c6edaf1" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-7a7b-b364-227bf7d9e6ec" xlink:to="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-7501-9a7f-144b9c6edaf1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7501-9a7f-144b9c6edaf1_default" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-7501-9a7f-144b9c6edaf1" xlink:to="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-7501-9a7f-144b9c6edaf1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-78b4-a656-b73cd6de17b6" xlink:href="art-20260930.xsd#art_DerivativeInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_art_DerivativeInstrumentNameAxis_019feccd-50e9-7501-9a7f-144b9c6edaf1" xlink:to="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-78b4-a656-b73cd6de17b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement1MaturingJuly302027Member_019feccd-50e9-790f-b48c-473b18aae80c" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement1MaturingJuly302027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-78b4-a656-b73cd6de17b6" xlink:to="loc_art_InterestRateSwapAgreement1MaturingJuly302027Member_019feccd-50e9-790f-b48c-473b18aae80c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement2MaturingJuly302027Member_019feccd-50e9-7dcc-8d30-267af9140577" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement2MaturingJuly302027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-78b4-a656-b73cd6de17b6" xlink:to="loc_art_InterestRateSwapAgreement2MaturingJuly302027Member_019feccd-50e9-7dcc-8d30-267af9140577" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement1MaturingDecember312027Member_019feccd-50e9-787c-aa38-8b990c2fa780" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement1MaturingDecember312027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-78b4-a656-b73cd6de17b6" xlink:to="loc_art_InterestRateSwapAgreement1MaturingDecember312027Member_019feccd-50e9-787c-aa38-8b990c2fa780" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_InterestRateSwapAgreement2MaturingDecember312027Member_019feccd-50e9-7f2f-a3f2-d836aa63f550" xlink:href="art-20260930.xsd#art_InterestRateSwapAgreement2MaturingDecember312027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_DerivativeInstrumentNameDomain_019feccd-50e9-78b4-a656-b73cd6de17b6" xlink:to="loc_art_InterestRateSwapAgreement2MaturingDecember312027Member_019feccd-50e9-7f2f-a3f2-d836aa63f550" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-740e-9a2b-57e1531757c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-7a7b-b364-227bf7d9e6ec" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-740e-9a2b-57e1531757c4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-740e-9a2b-57e1531757c4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-740e-9a2b-57e1531757c4" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-740e-9a2b-57e1531757c4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7030-8a91-3334c77cce7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-740e-9a2b-57e1531757c4" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7030-8a91-3334c77cce7c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019feccd-50e9-76f1-a86d-0cdc47f79739" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7030-8a91-3334c77cce7c" xlink:to="loc_us-gaap_InterestRateSwapMember_019feccd-50e9-76f1-a86d-0cdc47f79739" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-7997-87e9-d4dc53788dd2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-7a7b-b364-227bf7d9e6ec" xlink:to="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-7997-87e9-d4dc53788dd2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-7997-87e9-d4dc53788dd2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-7997-87e9-d4dc53788dd2" xlink:to="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-7997-87e9-d4dc53788dd2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-7faf-9bd3-787b3041aaf6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-7997-87e9-d4dc53788dd2" xlink:to="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-7faf-9bd3-787b3041aaf6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019feccd-50e9-7d9b-8166-c3076e9f9317" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-7faf-9bd3-787b3041aaf6" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019feccd-50e9-7d9b-8166-c3076e9f9317" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019feccd-50e9-7f1f-841d-5a26e90a6c16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-752f-9127-08a1e7ea136a" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019feccd-50e9-7f1f-841d-5a26e90a6c16" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFixedInterestRate_019feccd-50e9-7199-8c86-63bd2a597ce6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFixedInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-752f-9127-08a1e7ea136a" xlink:to="loc_us-gaap_DerivativeFixedInterestRate_019feccd-50e9-7199-8c86-63bd2a597ce6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019feccd-50e9-71b3-a17e-2acba3b893c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-752f-9127-08a1e7ea136a" xlink:to="loc_us-gaap_DerivativeAssets_019feccd-50e9-71b3-a17e-2acba3b893c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019feccd-50e9-7159-b7b3-b3f9816e9dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-752f-9127-08a1e7ea136a" xlink:to="loc_us-gaap_DerivativeLiabilities_019feccd-50e9-7159-b7b3-b3f9816e9dc9" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DerivativeFinancialInstrumentsScheduleofAmountsinCondensedConsolidatedStatementofOperationsIncludingImpactstoAccumulatedOtherComprehensiveIncomeAOCIDetails" xlink:type="simple" xlink:href="art-20260930.xsd#DerivativeFinancialInstrumentsScheduleofAmountsinCondensedConsolidatedStatementofOperationsIncludingImpactstoAccumulatedOtherComprehensiveIncomeAOCIDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DerivativeFinancialInstrumentsScheduleofAmountsinCondensedConsolidatedStatementofOperationsIncludingImpactstoAccumulatedOtherComprehensiveIncomeAOCIDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019feccd-50e9-788f-8cd8-6477a89b799f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019feccd-50e9-770d-b108-da1b470a3931" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-788f-8cd8-6477a89b799f" xlink:to="loc_us-gaap_DerivativeTable_019feccd-50e9-770d-b108-da1b470a3931" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7443-b57a-8fe6537ed3c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-770d-b108-da1b470a3931" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7443-b57a-8fe6537ed3c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7443-b57a-8fe6537ed3c9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7443-b57a-8fe6537ed3c9" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7443-b57a-8fe6537ed3c9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7443-b57a-8fe6537ed3c9" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateContractMember_019feccd-50e9-7012-8a13-7dd3c12ee1ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:to="loc_us-gaap_InterestRateContractMember_019feccd-50e9-7012-8a13-7dd3c12ee1ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryLockMember_019feccd-50e9-7b0a-b4de-a25e0f00efc2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryLockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:to="loc_us-gaap_TreasuryLockMember_019feccd-50e9-7b0a-b4de-a25e0f00efc2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019feccd-50e9-747d-899b-688ccdaaa97a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019feccd-50e9-747d-899b-688ccdaaa97a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_019feccd-50e9-70fa-aeee-3f85ce87254e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_019feccd-50e9-70fa-aeee-3f85ce87254e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019feccd-50e9-7ce0-be79-cbf0af1b5af1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-770d-b108-da1b470a3931" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019feccd-50e9-7ce0-be79-cbf0af1b5af1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019feccd-50e9-73da-a947-76345cf81661" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-788f-8cd8-6477a89b799f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019feccd-50e9-73da-a947-76345cf81661" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019feccd-50e9-7594-8fca-e11434450e98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-788f-8cd8-6477a89b799f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019feccd-50e9-7594-8fca-e11434450e98" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/DerivativeFinancialInstrumentsScheduleofAmountsinCondensedConsolidatedStatementofOperationsIncludingImpactstoAccumulatedOtherComprehensiveIncomeAOCIDetails_1" xlink:type="simple" xlink:href="art-20260930.xsd#DerivativeFinancialInstrumentsScheduleofAmountsinCondensedConsolidatedStatementofOperationsIncludingImpactstoAccumulatedOtherComprehensiveIncomeAOCIDetails_1"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/DerivativeFinancialInstrumentsScheduleofAmountsinCondensedConsolidatedStatementofOperationsIncludingImpactstoAccumulatedOtherComprehensiveIncomeAOCIDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019feccd-50e9-788f-8cd8-6477a89b799f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019feccd-50e9-770d-b108-da1b470a3931" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-788f-8cd8-6477a89b799f" xlink:to="loc_us-gaap_DerivativeTable_019feccd-50e9-770d-b108-da1b470a3931" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7443-b57a-8fe6537ed3c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019feccd-50e9-770d-b108-da1b470a3931" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7443-b57a-8fe6537ed3c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7443-b57a-8fe6537ed3c9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7443-b57a-8fe6537ed3c9" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7443-b57a-8fe6537ed3c9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7443-b57a-8fe6537ed3c9" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateContractMember_019feccd-50e9-7012-8a13-7dd3c12ee1ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:to="loc_us-gaap_InterestRateContractMember_019feccd-50e9-7012-8a13-7dd3c12ee1ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryLockMember_019feccd-50e9-7b0a-b4de-a25e0f00efc2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryLockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:to="loc_us-gaap_TreasuryLockMember_019feccd-50e9-7b0a-b4de-a25e0f00efc2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019feccd-50e9-747d-899b-688ccdaaa97a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019feccd-50e9-747d-899b-688ccdaaa97a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_019feccd-50e9-70fa-aeee-3f85ce87254e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7ca3-8e9c-bbe8306375d0" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_019feccd-50e9-70fa-aeee-3f85ce87254e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019feccd-50e9-73da-a947-76345cf81661" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-788f-8cd8-6477a89b799f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019feccd-50e9-73da-a947-76345cf81661" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019feccd-50e9-7594-8fca-e11434450e98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019feccd-50e9-788f-8cd8-6477a89b799f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019feccd-50e9-7594-8fca-e11434450e98" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/FairValueMeasurementsDetails" xlink:type="simple" xlink:href="art-20260930.xsd#FairValueMeasurementsDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/FairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019feccd-50e9-71fb-8210-60752793684b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019feccd-50e9-7f64-bd02-1a6467b0ea65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019feccd-50e9-71fb-8210-60752793684b" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019feccd-50e9-7f64-bd02-1a6467b0ea65" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7a14-b265-8e677529755c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019feccd-50e9-7f64-bd02-1a6467b0ea65" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7a14-b265-8e677529755c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7a14-b265-8e677529755c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7a14-b265-8e677529755c" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7a14-b265-8e677529755c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7f6b-b8ae-9cc233a74156" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019feccd-50e9-7a14-b265-8e677529755c" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7f6b-b8ae-9cc233a74156" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019feccd-50e9-76d9-be3a-a7222185e730" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019feccd-50e9-7f6b-b8ae-9cc233a74156" xlink:to="loc_us-gaap_InterestRateSwapMember_019feccd-50e9-76d9-be3a-a7222185e730" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019feccd-50e9-7964-92a0-79168ba41410" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019feccd-50e9-7f64-bd02-1a6467b0ea65" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019feccd-50e9-7964-92a0-79168ba41410" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019feccd-50e9-7964-92a0-79168ba41410_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019feccd-50e9-7964-92a0-79168ba41410" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019feccd-50e9-7964-92a0-79168ba41410_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019feccd-50e9-7955-83e7-478249f6d325" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019feccd-50e9-7964-92a0-79168ba41410" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019feccd-50e9-7955-83e7-478249f6d325" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019feccd-50e9-72a1-9d5f-336f9fadcbb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019feccd-50e9-7955-83e7-478249f6d325" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019feccd-50e9-72a1-9d5f-336f9fadcbb9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019feccd-50e9-7dea-9489-1ec2ac5038d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019feccd-50e9-7955-83e7-478249f6d325" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019feccd-50e9-7dea-9489-1ec2ac5038d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019feccd-50e9-753f-85aa-b268ba76cdad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019feccd-50e9-7f64-bd02-1a6467b0ea65" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019feccd-50e9-753f-85aa-b268ba76cdad" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019feccd-50e9-753f-85aa-b268ba76cdad_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019feccd-50e9-753f-85aa-b268ba76cdad" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019feccd-50e9-753f-85aa-b268ba76cdad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019feccd-50e9-7377-be5c-e73472fae1bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019feccd-50e9-753f-85aa-b268ba76cdad" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019feccd-50e9-7377-be5c-e73472fae1bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_019feccd-50e9-776a-9afc-24a8c58ac5e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019feccd-50e9-7377-be5c-e73472fae1bb" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_019feccd-50e9-776a-9afc-24a8c58ac5e9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019feccd-50e9-74c0-9643-ab68f81d931b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019feccd-50e9-7377-be5c-e73472fae1bb" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019feccd-50e9-74c0-9643-ab68f81d931b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-712d-9072-aa842c055c23" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019feccd-50e9-7f64-bd02-1a6467b0ea65" xlink:to="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-712d-9072-aa842c055c23" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-712d-9072-aa842c055c23_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-712d-9072-aa842c055c23" xlink:to="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-712d-9072-aa842c055c23_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-7818-8368-2b9080175155" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019feccd-50e9-712d-9072-aa842c055c23" xlink:to="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-7818-8368-2b9080175155" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019feccd-50e9-7dfe-ad6a-dd1c1c1bb62f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019feccd-50e9-7818-8368-2b9080175155" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019feccd-50e9-7dfe-ad6a-dd1c1c1bb62f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7886-aea7-8ee2446517eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019feccd-50e9-7f64-bd02-1a6467b0ea65" xlink:to="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7886-aea7-8ee2446517eb" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7886-aea7-8ee2446517eb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7886-aea7-8ee2446517eb" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-7886-aea7-8ee2446517eb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-79ed-aa85-bf5f4903c19d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019feccd-50e9-7886-aea7-8ee2446517eb" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-79ed-aa85-bf5f4903c19d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PublicDebtIssuance5.600NotesMember_019feccd-50e9-721d-b4f5-e087c4a62bd5" xlink:href="art-20260930.xsd#art_PublicDebtIssuance5.600NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-79ed-aa85-bf5f4903c19d" xlink:to="loc_art_PublicDebtIssuance5.600NotesMember_019feccd-50e9-721d-b4f5-e087c4a62bd5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PublicDebtIssuance5.409NotesMember_019feccd-50e9-7dd1-bab8-3eefbcb108e4" xlink:href="art-20260930.xsd#art_PublicDebtIssuance5.409NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019feccd-50e9-79ed-aa85-bf5f4903c19d" xlink:to="loc_art_PublicDebtIssuance5.409NotesMember_019feccd-50e9-7dd1-bab8-3eefbcb108e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7572-8753-a5ae20744207" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019feccd-50e9-7f64-bd02-1a6467b0ea65" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7572-8753-a5ae20744207" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7572-8753-a5ae20744207_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7572-8753-a5ae20744207" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7572-8753-a5ae20744207_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7ce8-b416-0f958efa1705" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019feccd-50e9-7572-8753-a5ae20744207" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7ce8-b416-0f958efa1705" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019feccd-50e9-7c09-b0c8-8cc67c04e42e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019feccd-50e9-7ce8-b416-0f958efa1705" xlink:to="loc_us-gaap_SeniorNotesMember_019feccd-50e9-7c09-b0c8-8cc67c04e42e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_FairValueMeasurementsRecurringValueMeasurementAbstract_019feccd-50e9-77f9-97d7-59e63303ac2e" xlink:href="art-20260930.xsd#art_FairValueMeasurementsRecurringValueMeasurementAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019feccd-50e9-71fb-8210-60752793684b" xlink:to="loc_art_FairValueMeasurementsRecurringValueMeasurementAbstract_019feccd-50e9-77f9-97d7-59e63303ac2e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019feccd-50e9-72b2-aeb4-0f8a80cebf50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_FairValueMeasurementsRecurringValueMeasurementAbstract_019feccd-50e9-77f9-97d7-59e63303ac2e" xlink:to="loc_us-gaap_DerivativeAssets_019feccd-50e9-72b2-aeb4-0f8a80cebf50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019feccd-50e9-793f-bd56-30d970792a04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_FairValueMeasurementsRecurringValueMeasurementAbstract_019feccd-50e9-77f9-97d7-59e63303ac2e" xlink:to="loc_us-gaap_DerivativeLiabilities_019feccd-50e9-793f-bd56-30d970792a04" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringValueMeasurementAbstract_019feccd-50e9-7d99-88a6-181bc3052ed6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsNonrecurringValueMeasurementAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019feccd-50e9-71fb-8210-60752793684b" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringValueMeasurementAbstract_019feccd-50e9-7d99-88a6-181bc3052ed6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsFairValueDisclosure_019feccd-50e9-7668-8fb7-5f522fc266bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsNonrecurringValueMeasurementAbstract_019feccd-50e9-7d99-88a6-181bc3052ed6" xlink:to="loc_us-gaap_OtherAssetsFairValueDisclosure_019feccd-50e9-7668-8fb7-5f522fc266bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalFairValueElementsAbstract_019feccd-50e9-7f74-b1e1-51dbccc1f30a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalFairValueElementsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019feccd-50e9-71fb-8210-60752793684b" xlink:to="loc_us-gaap_AdditionalFairValueElementsAbstract_019feccd-50e9-7f74-b1e1-51dbccc1f30a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_019feccd-50e9-7ea2-ba1b-16bfb1878117" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdditionalFairValueElementsAbstract_019feccd-50e9-7f74-b1e1-51dbccc1f30a" xlink:to="loc_us-gaap_LongTermDebtFairValue_019feccd-50e9-7ea2-ba1b-16bfb1878117" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019feccd-50e9-7f3d-8bd2-4b2907a08f76" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdditionalFairValueElementsAbstract_019feccd-50e9-7f74-b1e1-51dbccc1f30a" xlink:to="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019feccd-50e9-7f3d-8bd2-4b2907a08f76" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_GuaranteeObligationsFairValue_01a1a73f-21bd-7fcc-bf5e-8c95d94a4fce" xlink:href="art-20260930.xsd#art_GuaranteeObligationsFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019feccd-50e9-71fb-8210-60752793684b" xlink:to="loc_art_GuaranteeObligationsFairValue_01a1a73f-21bd-7fcc-bf5e-8c95d94a4fce" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/SegmentInformationScheduleofRevenueswithaReconciliationtoIncomeLossbeforeIncomeTaxandGainLossDetails" xlink:type="simple" xlink:href="art-20260930.xsd#SegmentInformationScheduleofRevenueswithaReconciliationtoIncomeLossbeforeIncomeTaxandGainLossDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/SegmentInformationScheduleofRevenueswithaReconciliationtoIncomeLossbeforeIncomeTaxandGainLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019feccd-50e9-7049-8f1d-37a98fe106b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019feccd-50e9-7afa-b584-6ca4be642888" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019feccd-50e9-7049-8f1d-37a98fe106b9" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019feccd-50e9-7afa-b584-6ca4be642888" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019feccd-50e9-7747-bdc0-f88a9820800c" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019feccd-50e9-7afa-b584-6ca4be642888" xlink:to="loc_srt_ConsolidationItemsAxis_019feccd-50e9-7747-bdc0-f88a9820800c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019feccd-50e9-7747-bdc0-f88a9820800c_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_019feccd-50e9-7747-bdc0-f88a9820800c" xlink:to="loc_srt_ConsolidationItemsDomain_019feccd-50e9-7747-bdc0-f88a9820800c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019feccd-50e9-7158-b207-cb9e62f212f4" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_019feccd-50e9-7747-bdc0-f88a9820800c" xlink:to="loc_srt_ConsolidationItemsDomain_019feccd-50e9-7158-b207-cb9e62f212f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019feccd-50e9-7ae1-a437-0c5a4e2c4e39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019feccd-50e9-7158-b207-cb9e62f212f4" xlink:to="loc_us-gaap_OperatingSegmentsMember_019feccd-50e9-7ae1-a437-0c5a4e2c4e39" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-50e9-706e-9969-9e20ae88098e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019feccd-50e9-7afa-b584-6ca4be642888" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-50e9-706e-9969-9e20ae88098e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019feccd-50e9-706e-9969-9e20ae88098e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-50e9-706e-9969-9e20ae88098e" xlink:to="loc_us-gaap_SegmentDomain_019feccd-50e9-706e-9969-9e20ae88098e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019feccd-50e9-70a2-b5b3-b41fd2c2e834" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019feccd-50e9-706e-9969-9e20ae88098e" xlink:to="loc_us-gaap_SegmentDomain_019feccd-50e9-70a2-b5b3-b41fd2c2e834" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_WarehouseSegmentMember_019feccd-50e9-7010-bbae-d42a8bc25fe9" xlink:href="art-20260930.xsd#art_WarehouseSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019feccd-50e9-70a2-b5b3-b41fd2c2e834" xlink:to="loc_art_WarehouseSegmentMember_019feccd-50e9-7010-bbae-d42a8bc25fe9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_TransportationSegmentMember_019feccd-50e9-79ab-8265-4e9326dd0794" xlink:href="art-20260930.xsd#art_TransportationSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019feccd-50e9-70a2-b5b3-b41fd2c2e834" xlink:to="loc_art_TransportationSegmentMember_019feccd-50e9-79ab-8265-4e9326dd0794" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsegmentsAxis_019feccd-50e9-7ac7-9537-6fc262da30ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019feccd-50e9-7afa-b584-6ca4be642888" xlink:to="loc_us-gaap_SubsegmentsAxis_019feccd-50e9-7ac7-9537-6fc262da30ab" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsegmentsDomain_019feccd-50e9-7ac7-9537-6fc262da30ab_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsegmentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsegmentsAxis_019feccd-50e9-7ac7-9537-6fc262da30ab" xlink:to="loc_us-gaap_SubsegmentsDomain_019feccd-50e9-7ac7-9537-6fc262da30ab_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsegmentsDomain_019feccd-50e9-78de-8a0a-87f1cf1ff935" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsegmentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsegmentsAxis_019feccd-50e9-7ac7-9537-6fc262da30ab" xlink:to="loc_us-gaap_SubsegmentsDomain_019feccd-50e9-78de-8a0a-87f1cf1ff935" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_PowerMember_019feccd-50e9-7485-bc0b-83aa2ac89d18" xlink:href="art-20260930.xsd#art_PowerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsegmentsDomain_019feccd-50e9-78de-8a0a-87f1cf1ff935" xlink:to="loc_art_PowerMember_019feccd-50e9-7485-bc0b-83aa2ac89d18" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_OtherFacilitiesCostsMember_019feccd-50e9-79a2-a5b7-8db685a318aa" xlink:href="art-20260930.xsd#art_OtherFacilitiesCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsegmentsDomain_019feccd-50e9-78de-8a0a-87f1cf1ff935" xlink:to="loc_art_OtherFacilitiesCostsMember_019feccd-50e9-79a2-a5b7-8db685a318aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_LaborMember_019feccd-50e9-7407-be89-269a1dfcfd0b" xlink:href="art-20260930.xsd#art_LaborMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsegmentsDomain_019feccd-50e9-78de-8a0a-87f1cf1ff935" xlink:to="loc_art_LaborMember_019feccd-50e9-7407-be89-269a1dfcfd0b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_OtherServiceCostMember_019feccd-50e9-7176-9bbc-ff5bb4596876" xlink:href="art-20260930.xsd#art_OtherServiceCostMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsegmentsDomain_019feccd-50e9-78de-8a0a-87f1cf1ff935" xlink:to="loc_art_OtherServiceCostMember_019feccd-50e9-7176-9bbc-ff5bb4596876" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_01a1a2f7-c4f2-741d-a1ec-786147e7c379" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019feccd-50e9-7afa-b584-6ca4be642888" xlink:to="loc_srt_ProductOrServiceAxis_01a1a2f7-c4f2-741d-a1ec-786147e7c379" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a1a2f7-c4f2-741d-a1ec-786147e7c379_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_01a1a2f7-c4f2-741d-a1ec-786147e7c379" xlink:to="loc_srt_ProductsAndServicesDomain_01a1a2f7-c4f2-741d-a1ec-786147e7c379_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a1a2f7-c4f2-79de-9782-1a90ac291aaf" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_01a1a2f7-c4f2-741d-a1ec-786147e7c379" xlink:to="loc_srt_ProductsAndServicesDomain_01a1a2f7-c4f2-79de-9782-1a90ac291aaf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_JointVentureRelatedManagementFeeAndReimbursedCostsMember_01a1a2f7-c4f2-7855-b8c0-d5ffc85aa2fe" xlink:href="art-20260930.xsd#art_JointVentureRelatedManagementFeeAndReimbursedCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a1a2f7-c4f2-79de-9782-1a90ac291aaf" xlink:to="loc_art_JointVentureRelatedManagementFeeAndReimbursedCostsMember_01a1a2f7-c4f2-7855-b8c0-d5ffc85aa2fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationRevenueAbstract_019feccd-50e9-74cf-a8f7-b38d46443ed6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationRevenueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019feccd-50e9-7049-8f1d-37a98fe106b9" xlink:to="loc_us-gaap_SegmentReportingInformationRevenueAbstract_019feccd-50e9-74cf-a8f7-b38d46443ed6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019feccd-50e9-7dfd-ad3e-864c83ed80df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationRevenueAbstract_019feccd-50e9-74cf-a8f7-b38d46443ed6" xlink:to="loc_us-gaap_Revenues_019feccd-50e9-7dfd-ad3e-864c83ed80df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SegmentContributionAbstract_019feccd-50e9-7eb6-b5d8-3cc185f7e1d4" xlink:href="art-20260930.xsd#art_SegmentContributionAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019feccd-50e9-7049-8f1d-37a98fe106b9" xlink:to="loc_art_SegmentContributionAbstract_019feccd-50e9-7eb6-b5d8-3cc185f7e1d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019feccd-50e9-7357-8a0d-cd358e28045f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_SegmentContributionAbstract_019feccd-50e9-7eb6-b5d8-3cc185f7e1d4" xlink:to="loc_us-gaap_CostOfRevenue_019feccd-50e9-7357-8a0d-cd358e28045f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SegmentContribution_019feccd-50e9-73c6-966b-9d9724e05fee" xlink:href="art-20260930.xsd#art_SegmentContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_SegmentContributionAbstract_019feccd-50e9-7eb6-b5d8-3cc185f7e1d4" xlink:to="loc_art_SegmentContribution_019feccd-50e9-73c6-966b-9d9724e05fee" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_SegmentContributionAbstract_019feccd-50e9-7eb6-b5d8-3cc185f7e1d4" xlink:to="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019feccd-50e9-70bf-a238-747e94328828" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019feccd-50e9-70bf-a238-747e94328828" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019feccd-50e9-794f-9a90-df59e51b8812" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019feccd-50e9-794f-9a90-df59e51b8812" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BusinessCombinationAcquisitionRelatedExpensesLitigationsExpenseAndOther_019feccd-50e9-7f09-92ab-473872274bd8" xlink:href="art-20260930.xsd#art_BusinessCombinationAcquisitionRelatedExpensesLitigationsExpenseAndOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_art_BusinessCombinationAcquisitionRelatedExpensesLitigationsExpenseAndOther_019feccd-50e9-7f09-92ab-473872274bd8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_019feccd-50e9-7f19-aec1-6b8b221bd900" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_019feccd-50e9-7f19-aec1-6b8b221bd900" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019feccd-50e9-755c-8a17-34eb44c24ff3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019feccd-50e9-755c-8a17-34eb44c24ff3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019feccd-50e9-70e7-b5c0-166bfce0f653" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019feccd-50e9-70e7-b5c0-166bfce0f653" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BusinessCombinationGainLossOnJointVentureFormation_01a0ed17-eca4-7628-a082-8bec7b5cbdce" xlink:href="art-20260930.xsd#art_BusinessCombinationGainLossOnJointVentureFormation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_art_BusinessCombinationGainLossOnJointVentureFormation_01a0ed17-eca4-7628-a082-8bec7b5cbdce" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019feccd-50e9-7245-b7db-901f1fd66f4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019feccd-50e9-7245-b7db-901f1fd66f4f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019feccd-50e9-7d5f-8309-92686ab459e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract_019feccd-50e9-7b89-be07-7badfc2846e7" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019feccd-50e9-7d5f-8309-92686ab459e9" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019feccd-50e9-7a10-b88d-a13bc00bf355" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_art_SegmentContributionAbstract_019feccd-50e9-7eb6-b5d8-3cc185f7e1d4" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019feccd-50e9-7a10-b88d-a13bc00bf355" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/EarningsLossperCommonShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails" xlink:type="simple" xlink:href="art-20260930.xsd#EarningsLossperCommonShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/EarningsLossperCommonShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019feccd-50e9-777c-accc-370dd28bf7c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019feccd-50e9-718a-959b-9d177cd52001" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019feccd-50e9-777c-accc-370dd28bf7c8" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019feccd-50e9-718a-959b-9d177cd52001" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019feccd-50e9-77a7-8e91-9ff7003afbc7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019feccd-50e9-718a-959b-9d177cd52001" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019feccd-50e9-77a7-8e91-9ff7003afbc7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019feccd-50e9-77a7-8e91-9ff7003afbc7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019feccd-50e9-77a7-8e91-9ff7003afbc7" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019feccd-50e9-77a7-8e91-9ff7003afbc7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019feccd-50e9-73fe-ab8f-40750fd3baa6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019feccd-50e9-77a7-8e91-9ff7003afbc7" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019feccd-50e9-73fe-ab8f-40750fd3baa6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_019feccd-50e9-7b35-a3f6-3b912223822f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019feccd-50e9-73fe-ab8f-40750fd3baa6" xlink:to="loc_us-gaap_EmployeeStockOptionMember_019feccd-50e9-7b35-a3f6-3b912223822f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019feccd-50e9-79c8-9712-72ed4e015fed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019feccd-50e9-73fe-ab8f-40750fd3baa6" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019feccd-50e9-79c8-9712-72ed4e015fed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_OPUnitsMember_019feccd-50e9-7e3b-8ca8-7a78e56b50b9" xlink:href="art-20260930.xsd#art_OPUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019feccd-50e9-73fe-ab8f-40750fd3baa6" xlink:to="loc_art_OPUnitsMember_019feccd-50e9-7e3b-8ca8-7a78e56b50b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019feccd-50e9-750b-bfc0-557a67e6e0b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019feccd-50e9-777c-accc-370dd28bf7c8" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019feccd-50e9-750b-bfc0-557a67e6e0b9" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/RevenuefromContractswithCustomersScheduleofDisaggregationofRevenuesDetails" xlink:type="simple" xlink:href="art-20260930.xsd#RevenuefromContractswithCustomersScheduleofDisaggregationofRevenuesDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/RevenuefromContractswithCustomersScheduleofDisaggregationofRevenuesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7e62-92a4-4049ae4dc6d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7240-8de6-a0d7c04026ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7e62-92a4-4049ae4dc6d9" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7240-8de6-a0d7c04026ea" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019feccd-50e9-7b91-a3f7-6fb876ab9425" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7240-8de6-a0d7c04026ea" xlink:to="loc_srt_ProductOrServiceAxis_019feccd-50e9-7b91-a3f7-6fb876ab9425" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7b91-a3f7-6fb876ab9425_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019feccd-50e9-7b91-a3f7-6fb876ab9425" xlink:to="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7b91-a3f7-6fb876ab9425_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7283-9075-a5d3ba9b8d1c" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019feccd-50e9-7b91-a3f7-6fb876ab9425" xlink:to="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7283-9075-a5d3ba9b8d1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_WarehouseRentAndStorageMember_019feccd-50e9-79f6-af6e-41779e78e012" xlink:href="art-20260930.xsd#art_WarehouseRentAndStorageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7283-9075-a5d3ba9b8d1c" xlink:to="loc_art_WarehouseRentAndStorageMember_019feccd-50e9-79f6-af6e-41779e78e012" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_WarehouseServicesMember_019feccd-50e9-71f2-be1b-30868143505b" xlink:href="art-20260930.xsd#art_WarehouseServicesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7283-9075-a5d3ba9b8d1c" xlink:to="loc_art_WarehouseServicesMember_019feccd-50e9-71f2-be1b-30868143505b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_TransportationMember_019feccd-50e9-73de-a62f-04ef746c8e96" xlink:href="art-20260930.xsd#art_TransportationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7283-9075-a5d3ba9b8d1c" xlink:to="loc_art_TransportationMember_019feccd-50e9-73de-a62f-04ef746c8e96" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_ThirdPartyManagedMember_01a13e02-1021-7ddc-8b75-497ac6e57b7e" xlink:href="art-20260930.xsd#art_ThirdPartyManagedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7283-9075-a5d3ba9b8d1c" xlink:to="loc_art_ThirdPartyManagedMember_01a13e02-1021-7ddc-8b75-497ac6e57b7e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_JointVentureRelatedManagementFeeAndReimbursedCostsMember_01a15fa3-8c31-7355-8a28-c57789debf98" xlink:href="art-20260930.xsd#art_JointVentureRelatedManagementFeeAndReimbursedCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019feccd-50e9-7283-9075-a5d3ba9b8d1c" xlink:to="loc_art_JointVentureRelatedManagementFeeAndReimbursedCostsMember_01a15fa3-8c31-7355-8a28-c57789debf98" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019feccd-50e9-7519-beb2-e042bcd3acbb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7240-8de6-a0d7c04026ea" xlink:to="loc_srt_StatementGeographicalAxis_019feccd-50e9-7519-beb2-e042bcd3acbb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019feccd-50e9-7519-beb2-e042bcd3acbb_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019feccd-50e9-7519-beb2-e042bcd3acbb" xlink:to="loc_srt_SegmentGeographicalDomain_019feccd-50e9-7519-beb2-e042bcd3acbb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019feccd-50e9-7488-ba1f-1a8c25e8ac8e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019feccd-50e9-7519-beb2-e042bcd3acbb" xlink:to="loc_srt_SegmentGeographicalDomain_019feccd-50e9-7488-ba1f-1a8c25e8ac8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NorthAmericaMember_019feccd-50e9-7100-aa15-ef09ee39a884" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_NorthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-50e9-7488-ba1f-1a8c25e8ac8e" xlink:to="loc_srt_NorthAmericaMember_019feccd-50e9-7100-aa15-ef09ee39a884" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember_019feccd-50e9-77f9-b851-db2433c2bc56" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EuropeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-50e9-7488-ba1f-1a8c25e8ac8e" xlink:to="loc_srt_EuropeMember_019feccd-50e9-77f9-b851-db2433c2bc56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AsiaPacificMember_019feccd-50e9-70ce-9326-0e339e29fb19" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_AsiaPacificMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-50e9-7488-ba1f-1a8c25e8ac8e" xlink:to="loc_srt_AsiaPacificMember_019feccd-50e9-70ce-9326-0e339e29fb19" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SouthAmericaMember_019feccd-50e9-7c7b-bc96-e1084cb9e519" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SouthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019feccd-50e9-7488-ba1f-1a8c25e8ac8e" xlink:to="loc_srt_SouthAmericaMember_019feccd-50e9-7c7b-bc96-e1084cb9e519" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019feccd-50e9-71d9-b1f2-53caa3e8033e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7e62-92a4-4049ae4dc6d9" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019feccd-50e9-71d9-b1f2-53caa3e8033e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLeaseIncome_019feccd-50e9-7c2f-9df3-6656aa4d2cd5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLeaseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7e62-92a4-4049ae4dc6d9" xlink:to="loc_us-gaap_OperatingLeaseLeaseIncome_019feccd-50e9-7c2f-9df3-6656aa4d2cd5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseIncomeComprehensiveIncomeExtensibleList_019feccd-50e9-7c71-908f-e2741453aa16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseIncomeComprehensiveIncomeExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7e62-92a4-4049ae4dc6d9" xlink:to="loc_us-gaap_OperatingLeaseIncomeComprehensiveIncomeExtensibleList_019feccd-50e9-7c71-908f-e2741453aa16" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019feccd-50e9-7b74-9840-f741c441b6c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7e62-92a4-4049ae4dc6d9" xlink:to="loc_us-gaap_Revenues_019feccd-50e9-7b74-9840-f741c441b6c5" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/RevenuefromContractswithCustomersPerformanceObligationsNarrativeDetails" xlink:type="simple" xlink:href="art-20260930.xsd#RevenuefromContractswithCustomersPerformanceObligationsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/RevenuefromContractswithCustomersPerformanceObligationsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7868-a923-077797865610" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7868-a923-077797865610" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019feccd-50e9-7f5c-8610-42ced2c3c8aa" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7868-a923-077797865610" xlink:to="loc_srt_RangeAxis_019feccd-50e9-7f5c-8610-42ced2c3c8aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019feccd-50e9-7f5c-8610-42ced2c3c8aa_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019feccd-50e9-7f5c-8610-42ced2c3c8aa" xlink:to="loc_srt_RangeMember_019feccd-50e9-7f5c-8610-42ced2c3c8aa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019feccd-50e9-76cf-a62f-64c5e3f199b2" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019feccd-50e9-7f5c-8610-42ced2c3c8aa" xlink:to="loc_srt_RangeMember_019feccd-50e9-76cf-a62f-64c5e3f199b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019feccd-50e9-7db7-8f9c-dcd583ee1fe6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019feccd-50e9-76cf-a62f-64c5e3f199b2" xlink:to="loc_srt_MinimumMember_019feccd-50e9-7db7-8f9c-dcd583ee1fe6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019feccd-50e9-7a34-8e05-9a036b3cbad1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019feccd-50e9-76cf-a62f-64c5e3f199b2" xlink:to="loc_srt_MaximumMember_019feccd-50e9-7a34-8e05-9a036b3cbad1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_019feccd-50e9-7588-b4b5-83082031d363" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7868-a923-077797865610" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_019feccd-50e9-7588-b4b5-83082031d363" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_RevenuePerformanceObligationSatisfiedOverTimeVariableConsiderationConstrainedPercentage_019feccd-50e9-710c-aa8a-d1bc8d0664de" xlink:href="art-20260930.xsd#art_RevenuePerformanceObligationSatisfiedOverTimeVariableConsiderationConstrainedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_art_RevenuePerformanceObligationSatisfiedOverTimeVariableConsiderationConstrainedPercentage_019feccd-50e9-710c-aa8a-d1bc8d0664de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_RevenuePerformanceObligationPaymentTerms_019feccd-50e9-7cf2-8249-fbc45e0c1a08" xlink:href="art-20260930.xsd#art_RevenuePerformanceObligationPaymentTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_art_RevenuePerformanceObligationPaymentTerms_019feccd-50e9-7cf2-8249-fbc45e0c1a08" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_019feccd-50e9-7073-a278-a9125b5b3d09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_019feccd-50e9-7073-a278-a9125b5b3d09" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_019feccd-50e9-764e-a9f3-eea1f35deb06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_019feccd-50e9-764e-a9f3-eea1f35deb06" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019feccd-50e9-75e5-837c-1de7f055f70b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019feccd-50e9-75e5-837c-1de7f055f70b" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/RevenuefromContractswithCustomersPerformanceObligationsNarrativeDetails_1" xlink:type="simple" xlink:href="art-20260930.xsd#RevenuefromContractswithCustomersPerformanceObligationsNarrativeDetails_1"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/RevenuefromContractswithCustomersPerformanceObligationsNarrativeDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7868-a923-077797865610" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7868-a923-077797865610" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019feccd-50e9-7f5c-8610-42ced2c3c8aa" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019feccd-50e9-7868-a923-077797865610" xlink:to="loc_srt_RangeAxis_019feccd-50e9-7f5c-8610-42ced2c3c8aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019feccd-50e9-7f5c-8610-42ced2c3c8aa_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019feccd-50e9-7f5c-8610-42ced2c3c8aa" xlink:to="loc_srt_RangeMember_019feccd-50e9-7f5c-8610-42ced2c3c8aa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019feccd-50e9-76cf-a62f-64c5e3f199b2" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019feccd-50e9-7f5c-8610-42ced2c3c8aa" xlink:to="loc_srt_RangeMember_019feccd-50e9-76cf-a62f-64c5e3f199b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019feccd-50e9-7db7-8f9c-dcd583ee1fe6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019feccd-50e9-76cf-a62f-64c5e3f199b2" xlink:to="loc_srt_MinimumMember_019feccd-50e9-7db7-8f9c-dcd583ee1fe6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019feccd-50e9-7a34-8e05-9a036b3cbad1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019feccd-50e9-76cf-a62f-64c5e3f199b2" xlink:to="loc_srt_MaximumMember_019feccd-50e9-7a34-8e05-9a036b3cbad1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_RevenuePerformanceObligationSatisfiedOverTimeVariableConsiderationConstrainedPercentage_019feccd-50e9-710c-aa8a-d1bc8d0664de" xlink:href="art-20260930.xsd#art_RevenuePerformanceObligationSatisfiedOverTimeVariableConsiderationConstrainedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_art_RevenuePerformanceObligationSatisfiedOverTimeVariableConsiderationConstrainedPercentage_019feccd-50e9-710c-aa8a-d1bc8d0664de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_RevenuePerformanceObligationPaymentTerms_019feccd-50e9-7cf2-8249-fbc45e0c1a08" xlink:href="art-20260930.xsd#art_RevenuePerformanceObligationPaymentTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_art_RevenuePerformanceObligationPaymentTerms_019feccd-50e9-7cf2-8249-fbc45e0c1a08" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_019feccd-50e9-7073-a278-a9125b5b3d09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_019feccd-50e9-7073-a278-a9125b5b3d09" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_019feccd-50e9-764e-a9f3-eea1f35deb06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_019feccd-50e9-764e-a9f3-eea1f35deb06" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019feccd-50e9-75e5-837c-1de7f055f70b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019feccd-50e9-7178-b56f-1ffe8e83fa18" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019feccd-50e9-75e5-837c-1de7f055f70b" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/InvestmentsinandAdvancestoPartiallyOwnedEntitiesScheduleofInvestmentsinandAdvancestoPartiallyOwnedDetails" xlink:type="simple" xlink:href="art-20260930.xsd#InvestmentsinandAdvancestoPartiallyOwnedEntitiesScheduleofInvestmentsinandAdvancestoPartiallyOwnedDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/InvestmentsinandAdvancestoPartiallyOwnedEntitiesScheduleofInvestmentsinandAdvancestoPartiallyOwnedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e9-7203-8e41-827bf3edee40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-50e9-7cf5-bf1a-02a20d793639" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e9-7203-8e41-827bf3edee40" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-50e9-7cf5-bf1a-02a20d793639" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019feccd-50e9-765e-9f4b-62ad1083b3cd" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019feccd-50e9-7cf5-bf1a-02a20d793639" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019feccd-50e9-765e-9f4b-62ad1083b3cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019feccd-50e9-765e-9f4b-62ad1083b3cd_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019feccd-50e9-765e-9f4b-62ad1083b3cd" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019feccd-50e9-765e-9f4b-62ad1083b3cd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019feccd-50e9-7e11-a558-188837d1083c" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019feccd-50e9-765e-9f4b-62ad1083b3cd" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019feccd-50e9-7e11-a558-188837d1083c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_RSAColdHoldingsLimitedMember_01a115e5-6ac7-7a92-963c-d79f9c2842fd" xlink:href="art-20260930.xsd#art_RSAColdHoldingsLimitedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019feccd-50e9-7e11-a558-188837d1083c" xlink:to="loc_art_RSAColdHoldingsLimitedMember_01a115e5-6ac7-7a92-963c-d79f9c2842fd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_EQTMember_01a11608-32bc-78f6-9e3c-134cd06ab756" xlink:href="art-20260930.xsd#art_EQTMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019feccd-50e9-7e11-a558-188837d1083c" xlink:to="loc_art_EQTMember_01a11608-32bc-78f6-9e3c-134cd06ab756" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019feccd-50e9-7c61-bcf0-b5bdd3562671" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e9-7203-8e41-827bf3edee40" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019feccd-50e9-7c61-bcf0-b5bdd3562671" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_01a115e7-7a5b-706e-b1c9-327e36b4c195" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e9-7203-8e41-827bf3edee40" xlink:to="loc_us-gaap_EquityMethodInvestments_01a115e7-7a5b-706e-b1c9-327e36b4c195" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions_01a115e8-54c2-73dc-b0fd-c5294651ec28" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e9-7203-8e41-827bf3edee40" xlink:to="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions_01a115e8-54c2-73dc-b0fd-c5294651ec28" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_01a115e8-bbb6-7fd8-bf60-a25eeaa4789f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019feccd-50e9-7203-8e41-827bf3edee40" xlink:to="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_01a115e8-bbb6-7fd8-bf60-a25eeaa4789f" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/InvestmentsinandAdvancestoPartiallyOwnedEntitiesNarrativeDetails" xlink:type="simple" xlink:href="art-20260930.xsd#InvestmentsinandAdvancestoPartiallyOwnedEntitiesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/InvestmentsinandAdvancestoPartiallyOwnedEntitiesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_01a115ef-6f22-70f9-82cb-161c70c6abf8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_01a115ef-6f22-70f9-82cb-161c70c6abf8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a115ef-dbe1-782b-94d5-d633cd7ab33e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_01a115ef-6f22-70f9-82cb-161c70c6abf8" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a115ef-dbe1-782b-94d5-d633cd7ab33e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_01a115ef-dbe1-782b-94d5-d633cd7ab33e_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a115ef-dbe1-782b-94d5-d633cd7ab33e" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_01a115ef-dbe1-782b-94d5-d633cd7ab33e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_01a115f0-21fc-74fc-8506-47f173ea3e23" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a115ef-dbe1-782b-94d5-d633cd7ab33e" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_01a115f0-21fc-74fc-8506-47f173ea3e23" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_RSAColdHoldingsLimitedMember_01a115f2-30d7-7be9-81a9-5a2d5d4e5a47" xlink:href="art-20260930.xsd#art_RSAColdHoldingsLimitedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_01a115f0-21fc-74fc-8506-47f173ea3e23" xlink:to="loc_art_RSAColdHoldingsLimitedMember_01a115f2-30d7-7be9-81a9-5a2d5d4e5a47" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AmericoldEQTColdStoragePartnershipLLCMember_01a162e6-2441-7b2b-94a2-0f9971b70528" xlink:href="art-20260930.xsd#art_AmericoldEQTColdStoragePartnershipLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_01a115f0-21fc-74fc-8506-47f173ea3e23" xlink:to="loc_art_AmericoldEQTColdStoragePartnershipLLCMember_01a162e6-2441-7b2b-94a2-0f9971b70528" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_01a115f4-7a3f-7c90-b44a-c341f6bdd8bd" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_01a115ef-6f22-70f9-82cb-161c70c6abf8" xlink:to="loc_srt_CounterpartyNameAxis_01a115f4-7a3f-7c90-b44a-c341f6bdd8bd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a115f4-7a3f-7c90-b44a-c341f6bdd8bd_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_01a115f4-7a3f-7c90-b44a-c341f6bdd8bd" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a115f4-7a3f-7c90-b44a-c341f6bdd8bd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a115f4-d629-725d-bea8-f0bcd2e68fc8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_01a115f4-7a3f-7c90-b44a-c341f6bdd8bd" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a115f4-d629-725d-bea8-f0bcd2e68fc8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_RSAMember_01a115f5-8b7d-7bef-a0ce-1ada71ff2890" xlink:href="art-20260930.xsd#art_RSAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a115f4-d629-725d-bea8-f0bcd2e68fc8" xlink:to="loc_art_RSAMember_01a115f5-8b7d-7bef-a0ce-1ada71ff2890" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_EQTPartnersMember_01a1177b-f055-7d5e-b022-4c0a65403724" xlink:href="art-20260930.xsd#art_EQTPartnersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_01a115f4-d629-725d-bea8-f0bcd2e68fc8" xlink:to="loc_art_EQTPartnersMember_01a1177b-f055-7d5e-b022-4c0a65403724" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_01a115f6-ad59-7646-8a9f-8a138c623185" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_01a115ef-6f22-70f9-82cb-161c70c6abf8" xlink:to="loc_us-gaap_DebtInstrumentAxis_01a115f6-ad59-7646-8a9f-8a138c623185" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-ad59-7646-8a9f-8a138c623185_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_01a115f6-ad59-7646-8a9f-8a138c623185" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-ad59-7646-8a9f-8a138c623185_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-fa47-779c-b00a-fcb8ce9db571" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_01a115f6-ad59-7646-8a9f-8a138c623185" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-fa47-779c-b00a-fcb8ce9db571" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BridgeLoanAgreementWithRSAJointVenturePhase2Member_01a115f7-5bb4-74b0-83be-32fb69ed3925" xlink:href="art-20260930.xsd#art_BridgeLoanAgreementWithRSAJointVenturePhase2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-fa47-779c-b00a-fcb8ce9db571" xlink:to="loc_art_BridgeLoanAgreementWithRSAJointVenturePhase2Member_01a115f7-5bb4-74b0-83be-32fb69ed3925" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BridgeLoanAgreementWithRSAJointVenturePhase3Member_01a115f7-ba24-74fc-9f18-a43e0d241ebf" xlink:href="art-20260930.xsd#art_BridgeLoanAgreementWithRSAJointVenturePhase3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-fa47-779c-b00a-fcb8ce9db571" xlink:to="loc_art_BridgeLoanAgreementWithRSAJointVenturePhase3Member_01a115f7-ba24-74fc-9f18-a43e0d241ebf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BridgeLoanMember_01a115f8-f722-756f-bd2b-fac9e00a18e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BridgeLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-fa47-779c-b00a-fcb8ce9db571" xlink:to="loc_us-gaap_BridgeLoanMember_01a115f8-f722-756f-bd2b-fac9e00a18e6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_TrancheA1Member_01a162d1-4e4c-7788-b2d1-b6ef45441df6" xlink:href="art-20260930.xsd#art_TrancheA1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-fa47-779c-b00a-fcb8ce9db571" xlink:to="loc_art_TrancheA1Member_01a162d1-4e4c-7788-b2d1-b6ef45441df6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_DelayedDrawFacilityMember_01a162d1-4e4c-7f6f-82ae-40d03d2e40d5" xlink:href="art-20260930.xsd#art_DelayedDrawFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-fa47-779c-b00a-fcb8ce9db571" xlink:to="loc_art_DelayedDrawFacilityMember_01a162d1-4e4c-7f6f-82ae-40d03d2e40d5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_A2025UnsecuredTermLoanMember_01a162d1-4e4c-7da6-a1fc-4e27c2091b1b" xlink:href="art-20260930.xsd#art_A2025UnsecuredTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a115f6-fa47-779c-b00a-fcb8ce9db571" xlink:to="loc_art_A2025UnsecuredTermLoanMember_01a162d1-4e4c-7da6-a1fc-4e27c2091b1b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_01a115f9-75a9-7698-a202-140a280857e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_01a115ef-6f22-70f9-82cb-161c70c6abf8" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_01a115f9-75a9-7698-a202-140a280857e1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_01a115f9-75a9-7698-a202-140a280857e1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_01a115f9-75a9-7698-a202-140a280857e1" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_01a115f9-75a9-7698-a202-140a280857e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_01a115f9-cc0a-7fc5-a215-9e2e94d53cb2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_01a115f9-75a9-7698-a202-140a280857e1" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_01a115f9-cc0a-7fc5-a215-9e2e94d53cb2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BridgeLoanMember_01a115f9-f9ca-7ea4-9d69-ad5ed622a307" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BridgeLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_01a115f9-cc0a-7fc5-a215-9e2e94d53cb2" xlink:to="loc_us-gaap_BridgeLoanMember_01a115f9-f9ca-7ea4-9d69-ad5ed622a307" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_01a162d1-4e4c-749e-8d4f-c50edbfca38b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_01a115ef-6f22-70f9-82cb-161c70c6abf8" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_01a162d1-4e4c-749e-8d4f-c50edbfca38b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_01a162d1-4e4c-749e-8d4f-c50edbfca38b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_01a162d1-4e4c-749e-8d4f-c50edbfca38b" xlink:to="loc_us-gaap_RelatedPartyDomain_01a162d1-4e4c-749e-8d4f-c50edbfca38b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_01a162d1-4e4c-704c-aa0b-bba8c2b7cee7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_01a162d1-4e4c-749e-8d4f-c50edbfca38b" xlink:to="loc_us-gaap_RelatedPartyDomain_01a162d1-4e4c-704c-aa0b-bba8c2b7cee7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_EQTPartnersMember_01a162d1-4e4c-7fbf-9684-0cd684830338" xlink:href="art-20260930.xsd#art_EQTPartnersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_01a162d1-4e4c-704c-aa0b-bba8c2b7cee7" xlink:to="loc_art_EQTPartnersMember_01a162d1-4e4c-7fbf-9684-0cd684830338" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_01a162d1-4e4c-7cd8-9ef4-cce74b7ee2a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_01a115ef-6f22-70f9-82cb-161c70c6abf8" xlink:to="loc_us-gaap_CreditFacilityAxis_01a162d1-4e4c-7cd8-9ef4-cce74b7ee2a3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a162d1-4e4c-7cd8-9ef4-cce74b7ee2a3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_01a162d1-4e4c-7cd8-9ef4-cce74b7ee2a3" xlink:to="loc_us-gaap_CreditFacilityDomain_01a162d1-4e4c-7cd8-9ef4-cce74b7ee2a3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a162d1-4e4c-7e31-adf5-62f24f484f62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_01a162d1-4e4c-7cd8-9ef4-cce74b7ee2a3" xlink:to="loc_us-gaap_CreditFacilityDomain_01a162d1-4e4c-7e31-adf5-62f24f484f62" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_01a162d1-4e4c-70aa-8885-869dc87a3df8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_01a162d1-4e4c-7e31-adf5-62f24f484f62" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_01a162d1-4e4c-70aa-8885-869dc87a3df8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_01a115fb-e9c0-730c-8886-2ffa0e898925" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_01a115fb-e9c0-730c-8886-2ffa0e898925" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_01a115fc-3a14-7f25-9154-28d58267d066" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_01a115fc-3a14-7f25-9154-28d58267d066" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_01a115ff-bacd-7834-9ec7-fe1bb46a667f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireInterestInJointVenture"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_01a115ff-bacd-7834-9ec7-fe1bb46a667f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BridgeLoan_01a11600-6ab2-79e0-89f6-48363a07e3f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BridgeLoan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_BridgeLoan_01a11600-6ab2-79e0-89f6-48363a07e3f2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentAmount1_01a11600-abf8-7ba9-bc02-0d733ac63cf8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentAmount1_01a11600-abf8-7ba9-bc02-0d733ac63cf8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_01a11600-d6d7-7c50-a36d-3a4496ccf43e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_01a11600-d6d7-7c50-a36d-3a4496ccf43e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_01a11601-dbf1-7019-a119-dd01408193ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_01a11601-dbf1-7019-a119-dd01408193ab" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfShortTermDebt_01a11605-e10e-75f9-9f55-f79759516873" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfShortTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_RepaymentsOfShortTermDebt_01a11605-e10e-75f9-9f55-f79759516873" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_ProceedsFromCollectionOfAdvancesToPartiallyOwnedEntitiesInvestingActivity_01a138ed-5441-73dc-a08d-a4bdcbf03598" xlink:href="art-20260930.xsd#art_ProceedsFromCollectionOfAdvancesToPartiallyOwnedEntitiesInvestingActivity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_art_ProceedsFromCollectionOfAdvancesToPartiallyOwnedEntitiesInvestingActivity_01a138ed-5441-73dc-a08d-a4bdcbf03598" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_01a162d1-4e4c-7c85-b570-3e44378a34ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_01a162d1-4e4c-7c85-b570-3e44378a34ee" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_01a162d1-4e4c-78ba-af3a-f3edafb2b028" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_01a162d1-4e4c-78ba-af3a-f3edafb2b028" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_01a162d1-4e4c-7430-ab20-a6fa4930f531" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_01a162d1-4e4c-7430-ab20-a6fa4930f531" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_BusinessCombinationGainLossOnJointVentureFormation_01a162d1-4e4c-71dc-b44c-82a186366d91" xlink:href="art-20260930.xsd#art_BusinessCombinationGainLossOnJointVentureFormation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_art_BusinessCombinationGainLossOnJointVentureFormation_01a162d1-4e4c-71dc-b44c-82a186366d91" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_01a162d1-4e4c-78bf-a8e2-acde01bfe1bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_EquityMethodInvestments_01a162d1-4e4c-78bf-a8e2-acde01bfe1bc" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_GuaranteeObligationsUncollateralizedObligationMaximumPercentage_01a162d1-4e4c-7ba5-9749-d3bd0406bece" xlink:href="art-20260930.xsd#art_GuaranteeObligationsUncollateralizedObligationMaximumPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_art_GuaranteeObligationsUncollateralizedObligationMaximumPercentage_01a162d1-4e4c-7ba5-9749-d3bd0406bece" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_GuaranteeObligationsCurrentAndNoncurrent_01a162d1-4e4c-72cf-909c-7713791637a4" xlink:href="art-20260930.xsd#art_GuaranteeObligationsCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_art_GuaranteeObligationsCurrentAndNoncurrent_01a162d1-4e4c-72cf-909c-7713791637a4" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_01a18b92-7faf-74a9-9720-9772740520dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_us-gaap_PurchaseObligation_01a18b92-7faf-74a9-9720-9772740520dd" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_CommitmentToFundCapitalExpendituresAmount_01a162d1-4e4c-7970-a2c8-48ab12b5a586" xlink:href="art-20260930.xsd#art_CommitmentToFundCapitalExpendituresAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_art_CommitmentToFundCapitalExpendituresAmount_01a162d1-4e4c-7970-a2c8-48ab12b5a586" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_GuaranteeObligationsMaximumExposureAmount_01a162d1-4e4c-747c-b6c9-5af4b3207b19" xlink:href="art-20260930.xsd#art_GuaranteeObligationsMaximumExposureAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_art_GuaranteeObligationsMaximumExposureAmount_01a162d1-4e4c-747c-b6c9-5af4b3207b19" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_GuaranteeObligationsFairValue_01a162d1-4e4c-7b18-a2ca-018a56792441" xlink:href="art-20260930.xsd#art_GuaranteeObligationsFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_art_GuaranteeObligationsFairValue_01a162d1-4e4c-7b18-a2ca-018a56792441" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_EquityMethodInvestmentNumberOfPropertiesContributed_01a1ac59-342d-7fef-9545-24b29d7e1232" xlink:href="art-20260930.xsd#art_EquityMethodInvestmentNumberOfPropertiesContributed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_01a115fb-5a14-748c-96fd-7247a362c292" xlink:to="loc_art_EquityMethodInvestmentNumberOfPropertiesContributed_01a1ac59-342d-7fef-9545-24b29d7e1232" xlink:type="arc" order="20"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.americold.com/role/AccumulatedOtherComprehensiveLossDetails" xlink:type="simple" xlink:href="art-20260930.xsd#AccumulatedOtherComprehensiveLossDetails"/>
  <link:definitionLink xlink:role="http://www.americold.com/role/AccumulatedOtherComprehensiveLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019feccd-50e9-79b1-b1c0-0628a1f10985" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019feccd-50e9-7302-8a63-e413e95f72d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019feccd-50e9-79b1-b1c0-0628a1f10985" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019feccd-50e9-7302-8a63-e413e95f72d1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019feccd-50e9-7832-bcb8-88973b861d06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019feccd-50e9-7302-8a63-e413e95f72d1" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019feccd-50e9-7832-bcb8-88973b861d06" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019feccd-50e9-7832-bcb8-88973b861d06_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019feccd-50e9-7832-bcb8-88973b861d06" xlink:to="loc_us-gaap_EquityComponentDomain_019feccd-50e9-7832-bcb8-88973b861d06_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019feccd-50e9-7d38-9c15-13b153b4ad1d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019feccd-50e9-7832-bcb8-88973b861d06" xlink:to="loc_us-gaap_EquityComponentDomain_019feccd-50e9-7d38-9c15-13b153b4ad1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019feccd-50e9-761a-b65b-0f030b463a4d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019feccd-50e9-7d38-9c15-13b153b4ad1d" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019feccd-50e9-761a-b65b-0f030b463a4d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_019feccd-50e9-7820-bb9d-f23339052487" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019feccd-50e9-761a-b65b-0f030b463a4d" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_019feccd-50e9-7820-bb9d-f23339052487" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember_019feccd-50e9-7ca5-80dc-e563ef1a859e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_019feccd-50e9-7820-bb9d-f23339052487" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember_019feccd-50e9-7ca5-80dc-e563ef1a859e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_019feccd-50e9-73ae-afbf-134341596011" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019feccd-50e9-761a-b65b-0f030b463a4d" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_019feccd-50e9-73ae-afbf-134341596011" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_AccumulatedGainLossHedgeParentMember_019feccd-50e9-73e0-8f5c-8bfee6d00b4f" xlink:href="art-20260930.xsd#art_AccumulatedGainLossHedgeParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019feccd-50e9-761a-b65b-0f030b463a4d" xlink:to="loc_art_AccumulatedGainLossHedgeParentMember_019feccd-50e9-73e0-8f5c-8bfee6d00b4f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019feccd-50e9-7644-8e0c-8358af0f7ea7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019feccd-50e9-7302-8a63-e413e95f72d1" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019feccd-50e9-7644-8e0c-8358af0f7ea7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019feccd-50e9-7644-8e0c-8358af0f7ea7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019feccd-50e9-7644-8e0c-8358af0f7ea7" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019feccd-50e9-7644-8e0c-8358af0f7ea7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019feccd-50e9-778b-ba7b-1d7275907dbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019feccd-50e9-7644-8e0c-8358af0f7ea7" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019feccd-50e9-778b-ba7b-1d7275907dbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_019feccd-50e9-7590-bbe1-2532e314ad4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetInvestmentHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_019feccd-50e9-778b-ba7b-1d7275907dbb" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_019feccd-50e9-7590-bbe1-2532e314ad4c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a06b6d-7e15-7cef-8007-682590888811" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019feccd-50e9-7302-8a63-e413e95f72d1" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a06b6d-7e15-7cef-8007-682590888811" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_01a06b6d-7e15-7cef-8007-682590888811_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a06b6d-7e15-7cef-8007-682590888811" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_01a06b6d-7e15-7cef-8007-682590888811_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_01a06b6d-7e15-72ba-955c-158e916d7dfe" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_01a06b6d-7e15-7cef-8007-682590888811" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_01a06b6d-7e15-72ba-955c-158e916d7dfe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_SuperfrioArmazensGeraisS.A.Member_01a06b6d-cf3e-75f6-8fb4-341e704fc691" xlink:href="art-20260930.xsd#art_SuperfrioArmazensGeraisS.A.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_01a06b6d-7e15-72ba-955c-158e916d7dfe" xlink:to="loc_art_SuperfrioArmazensGeraisS.A.Member_01a06b6d-cf3e-75f6-8fb4-341e704fc691" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019feccd-50e9-79b1-b1c0-0628a1f10985" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019feccd-50e9-7017-b759-275749c46eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019feccd-50e9-7017-b759-275749c46eb5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019feccd-50e9-7a7d-85e8-2511b8687af4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019feccd-50e9-7a7d-85e8-2511b8687af4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019feccd-50e9-70f8-a941-1d9c9bdc9c15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019feccd-50e9-70f8-a941-1d9c9bdc9c15" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_019feccd-50e9-7a9b-b2f2-58a54d569350" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_019feccd-50e9-7a9b-b2f2-58a54d569350" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent_01a06b69-7786-76c5-a4e6-512ae022a198" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent_01a06b69-7786-76c5-a4e6-512ae022a198" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_01a06b6c-b8a0-7039-8c57-a441fda9d257" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_01a06b6c-b8a0-7039-8c57-a441fda9d257" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_art_OtherComprehensiveIncomeLossReclassificationDerecognitionOfCumulativeForeignCurrencyTranslationUponDeconsolidationOfEntityContributedToAJointVenture_019feccd-50e9-75fc-8f69-b1554a464b35" xlink:href="art-20260930.xsd#art_OtherComprehensiveIncomeLossReclassificationDerecognitionOfCumulativeForeignCurrencyTranslationUponDeconsolidationOfEntityContributedToAJointVenture"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:to="loc_art_OtherComprehensiveIncomeLossReclassificationDerecognitionOfCumulativeForeignCurrencyTranslationUponDeconsolidationOfEntityContributedToAJointVenture_019feccd-50e9-75fc-8f69-b1554a464b35" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease_019feccd-50e9-78f0-abd4-648cdbb8f742" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019feccd-50e9-7cf8-9a9b-05a65e50e759" xlink:to="loc_us-gaap_AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease_019feccd-50e9-78f0-abd4-648cdbb8f742" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019feccd-50e9-79ee-ad65-4fde2d99ee87" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionExpense_01a1a4f7-ecfc-79a3-b420-7c7d5384b16b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019feccd-50e9-79b1-b1c0-0628a1f10985" xlink:to="loc_us-gaap_PensionExpense_01a1a4f7-ecfc-79a3-b420-7c7d5384b16b" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
