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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e8a0d-3a95-76d8-b5e9-9ad5a0b8922b,g:474eea5f-70fd-481d-bf8b-373e89da0823-->
<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.elementsolutionsinc.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="esi-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019e8a0d-3c0f-79ff-952d-57b0ac10c41c" 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_019e8a0d-3c0f-73b3-a521-544f31a711e6" 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_019e8a0d-3c0f-79ff-952d-57b0ac10c41c" xlink:to="loc_us-gaap_StatementTable_019e8a0d-3c0f-73b3-a521-544f31a711e6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019e8a0d-3c0f-7235-b9fe-4956e43208fb" 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_019e8a0d-3c0f-73b3-a521-544f31a711e6" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019e8a0d-3c0f-7235-b9fe-4956e43208fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019e8a0d-3c0f-7235-b9fe-4956e43208fb_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_019e8a0d-3c0f-7235-b9fe-4956e43208fb" xlink:to="loc_us-gaap_EquityComponentDomain_019e8a0d-3c0f-7235-b9fe-4956e43208fb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019e8a0d-3c0f-79c9-83d3-ea28cdbd25d6" 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_019e8a0d-3c0f-7235-b9fe-4956e43208fb" xlink:to="loc_us-gaap_EquityComponentDomain_019e8a0d-3c0f-79c9-83d3-ea28cdbd25d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParentMember_019e8a0d-3c0f-7ca4-b4b1-b723ab825e46" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019e8a0d-3c0f-79c9-83d3-ea28cdbd25d6" xlink:to="loc_us-gaap_ParentMember_019e8a0d-3c0f-7ca4-b4b1-b723ab825e46" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019e8a0d-3c0f-7adf-b7d2-865d664387f2" 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_ParentMember_019e8a0d-3c0f-7ca4-b4b1-b723ab825e46" xlink:to="loc_us-gaap_CommonStockMember_019e8a0d-3c0f-7adf-b7d2-865d664387f2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019e8a0d-3c0f-7791-92a5-ff4d52adca02" 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_ParentMember_019e8a0d-3c0f-7ca4-b4b1-b723ab825e46" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019e8a0d-3c0f-7791-92a5-ff4d52adca02" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_019e8a0d-3c0f-761b-a54b-2141618e033d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019e8a0d-3c0f-7ca4-b4b1-b723ab825e46" xlink:to="loc_us-gaap_TreasuryStockCommonMember_019e8a0d-3c0f-761b-a54b-2141618e033d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019e8a0d-3c0f-70bf-bdc6-1e8237fbd249" 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_ParentMember_019e8a0d-3c0f-7ca4-b4b1-b723ab825e46" xlink:to="loc_us-gaap_RetainedEarningsMember_019e8a0d-3c0f-70bf-bdc6-1e8237fbd249" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019e8a0d-3c0f-77b2-ba0c-ce2f39718076" 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_ParentMember_019e8a0d-3c0f-7ca4-b4b1-b723ab825e46" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019e8a0d-3c0f-77b2-ba0c-ce2f39718076" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_019e8a0d-3c0f-7cad-a117-090b988f6bed" 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_019e8a0d-3c0f-79c9-83d3-ea28cdbd25d6" xlink:to="loc_us-gaap_NoncontrollingInterestMember_019e8a0d-3c0f-7cad-a117-090b988f6bed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" 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_019e8a0d-3c0f-79ff-952d-57b0ac10c41c" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019e8a0d-3c0f-7a26-b179-2ba26998d0c6" 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_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019e8a0d-3c0f-7a26-b179-2ba26998d0c6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e8a0d-3c0f-72e7-82f1-17b6aab1a276" 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_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e8a0d-3c0f-72e7-82f1-17b6aab1a276" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019e8a0d-3c0f-700f-baf4-d831fab96260" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_TreasuryStockCommonShares_019e8a0d-3c0f-700f-baf4-d831fab96260" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e8a0d-3c0f-7ad8-85f0-a22b8a511de8" 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_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_ProfitLoss_019e8a0d-3c0f-7ad8-85f0-a22b8a511de8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_OtherComprehensiveIncomeLossExcludingAcquisitionAndConversionActivityNetOfTax_019e8a0d-3c0f-7ea4-aa84-96f8e294137a" xlink:href="esi-20260630.xsd#esi_OtherComprehensiveIncomeLossExcludingAcquisitionAndConversionActivityNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_esi_OtherComprehensiveIncomeLossExcludingAcquisitionAndConversionActivityNetOfTax_019e8a0d-3c0f-7ea4-aa84-96f8e294137a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_StockIssuedDuringPeriodSharesExerciseVestingOfShareBasedCompensation_019e8a0d-3c0f-7317-aa22-ddaa3eccdec8" xlink:href="esi-20260630.xsd#esi_StockIssuedDuringPeriodSharesExerciseVestingOfShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_esi_StockIssuedDuringPeriodSharesExerciseVestingOfShareBasedCompensation_019e8a0d-3c0f-7317-aa22-ddaa3eccdec8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_StockIssuedDuringPeriodValueExerciseVestingOfShareBasedCompensation_019e8a0d-3c0f-79ef-8c57-5e8fefeba5b1" xlink:href="esi-20260630.xsd#esi_StockIssuedDuringPeriodValueExerciseVestingOfShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_esi_StockIssuedDuringPeriodValueExerciseVestingOfShareBasedCompensation_019e8a0d-3c0f-79ef-8c57-5e8fefeba5b1" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_019e8a0d-3c0f-799f-9750-9b810850d99f" 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_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_019e8a0d-3c0f-799f-9750-9b810850d99f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_019e8a0d-3c0f-7a68-8625-22a417be3154" 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_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_019e8a0d-3c0f-7a68-8625-22a417be3154" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_019e8a0d-3c0f-7a2f-b7a2-113a90ffad75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_019e8a0d-3c0f-7a2f-b7a2-113a90ffad75" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_019e8a0d-3c0f-7766-9596-2cfcdd94c0da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_019e8a0d-3c0f-7766-9596-2cfcdd94c0da" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Dividends_019e8a0d-3c0f-7db3-8f91-3098e42c875e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Dividends"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_Dividends_019e8a0d-3c0f-7db3-8f91-3098e42c875e" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019e8a0d-3c0f-7936-a95c-a32cf30b79bd" 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_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019e8a0d-3c0f-7936-a95c-a32cf30b79bd" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestPeriodIncreaseDecrease_019e8a0d-3c0f-7670-81da-64be9b55224f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestPeriodIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e8a0d-3c0f-7d33-b691-2e1ad41e3b87" xlink:to="loc_us-gaap_MinorityInterestPeriodIncreaseDecrease_019e8a0d-3c0f-7670-81da-64be9b55224f" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019e8a0d-3c0f-7d69-a4a4-0d1853521fe4" 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_019e8a0d-3c0f-7779-878c-6684c68145be" 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_TreasuryStockCommonShares_019e8a0d-3c0f-7af2-900c-0f3db5fe57b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/BACKGROUNDANDBASISOFPRESENTATIONDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#BACKGROUNDANDBASISOFPRESENTATIONDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/BACKGROUNDANDBASISOFPRESENTATIONDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019f5f6c-238d-7211-901f-37250b18656d" 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_019f5f6c-238d-7f3b-b96c-3986fc7cb5a2" 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_019f5f6c-238d-7211-901f-37250b18656d" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019f5f6c-238d-7f3b-b96c-3986fc7cb5a2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019f5f6c-238d-7e22-9393-2a6f6e9408da" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019f5f6c-238d-7f3b-b96c-3986fc7cb5a2" xlink:to="loc_dei_LegalEntityAxis_019f5f6c-238d-7e22-9393-2a6f6e9408da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f5f6c-238d-7e22-9393-2a6f6e9408da_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019f5f6c-238d-7e22-9393-2a6f6e9408da" xlink:to="loc_dei_EntityDomain_019f5f6c-238d-7e22-9393-2a6f6e9408da_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f5f6c-238d-797f-8af4-918ab1841401" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019f5f6c-238d-7e22-9393-2a6f6e9408da" xlink:to="loc_dei_EntityDomain_019f5f6c-238d-797f-8af4-918ab1841401" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_SolsticeMember_019f5f6c-238d-7ec0-8585-83c4cbc9275f" xlink:href="esi-20260630.xsd#esi_SolsticeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f5f6c-238d-797f-8af4-918ab1841401" xlink:to="loc_esi_SolsticeMember_019f5f6c-238d-7ec0-8585-83c4cbc9275f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019f6921-02fb-7b94-a7eb-892832c3f5bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019f5f6c-238d-7f3b-b96c-3986fc7cb5a2" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019f6921-02fb-7b94-a7eb-892832c3f5bc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019f6921-02fb-7b94-a7eb-892832c3f5bc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019f6921-02fb-7b94-a7eb-892832c3f5bc" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019f6921-02fb-7b94-a7eb-892832c3f5bc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019f6921-02fb-7e86-9c1d-5931e47e88ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019f6921-02fb-7b94-a7eb-892832c3f5bc" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019f6921-02fb-7e86-9c1d-5931e47e88ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019f6921-22ce-7093-8d66-47960eab8026" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019f6921-02fb-7e86-9c1d-5931e47e88ed" xlink:to="loc_us-gaap_SubsequentEventMember_019f6921-22ce-7093-8d66-47960eab8026" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019f804a-0f53-7b83-b001-3a5d6cc183d5" 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_019f5f6c-238d-7f3b-b96c-3986fc7cb5a2" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019f804a-0f53-7b83-b001-3a5d6cc183d5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f804a-0f53-7b83-b001-3a5d6cc183d5_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_019f804a-0f53-7b83-b001-3a5d6cc183d5" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f804a-0f53-7b83-b001-3a5d6cc183d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f804a-0f53-75d3-968c-1fe10c95bae8" 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_019f804a-0f53-7b83-b001-3a5d6cc183d5" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f804a-0f53-75d3-968c-1fe10c95bae8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ElementSolutionsIncMember_019f804a-9d7e-7de4-aa0c-b3583a54a3a6" xlink:href="esi-20260630.xsd#esi_ElementSolutionsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f804a-0f53-75d3-968c-1fe10c95bae8" xlink:to="loc_esi_ElementSolutionsIncMember_019f804a-9d7e-7de4-aa0c-b3583a54a3a6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019e8a0d-3c0f-7a5f-bbbf-5a5cf34cc769" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f5f6c-238d-7211-901f-37250b18656d" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019e8a0d-3c0f-7a5f-bbbf-5a5cf34cc769" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019e8a0d-3c0f-7587-b52e-ad36cc86b106" 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_BusinessAcquisitionLineItems_019f5f6c-238d-7211-901f-37250b18656d" xlink:to="loc_us-gaap_NumberOfReportableSegments_019e8a0d-3c0f-7587-b52e-ad36cc86b106" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableEntitySharesIssuedPerAcquireeShare_019f5f6c-238d-7389-b211-6baa62ace1bf" xlink:href="esi-20260630.xsd#esi_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableEntitySharesIssuedPerAcquireeShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f5f6c-238d-7211-901f-37250b18656d" xlink:to="loc_esi_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableEntitySharesIssuedPerAcquireeShare_019f5f6c-238d-7389-b211-6baa62ace1bf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableCashPaidPerAcquireeShare_019f5f6c-238d-770d-91bc-7492ffdd29ad" xlink:href="esi-20260630.xsd#esi_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableCashPaidPerAcquireeShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f5f6c-238d-7211-901f-37250b18656d" xlink:to="loc_esi_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableCashPaidPerAcquireeShare_019f5f6c-238d-770d-91bc-7492ffdd29ad" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/ACQUISITIONSNarrativeDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#ACQUISITIONSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/ACQUISITIONSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" 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_019e8a0d-3c0f-7761-8177-f870442ff771" 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_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7761-8177-f870442ff771" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019e8a0d-3c0f-7fe9-902c-5bfa5f89572c" 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_019e8a0d-3c0f-7761-8177-f870442ff771" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019e8a0d-3c0f-7fe9-902c-5bfa5f89572c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7fe9-902c-5bfa5f89572c_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_019e8a0d-3c0f-7fe9-902c-5bfa5f89572c" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7fe9-902c-5bfa5f89572c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7526-afbc-303468873ff6" 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_019e8a0d-3c0f-7fe9-902c-5bfa5f89572c" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7526-afbc-303468873ff6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_MicromaxMember_019e8a0d-3c0f-7115-b32c-bcf84b413ddb" xlink:href="esi-20260630.xsd#esi_MicromaxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7526-afbc-303468873ff6" xlink:to="loc_esi_MicromaxMember_019e8a0d-3c0f-7115-b32c-bcf84b413ddb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_EFCMember_019e8a0d-3c0f-77f6-bbbb-81754f0fc78a" xlink:href="esi-20260630.xsd#esi_EFCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7526-afbc-303468873ff6" xlink:to="loc_esi_EFCMember_019e8a0d-3c0f-77f6-bbbb-81754f0fc78a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-70d9-bf10-ee42dfbe2d7f" 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_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7761-8177-f870442ff771" xlink:to="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-70d9-bf10-ee42dfbe2d7f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-70d9-bf10-ee42dfbe2d7f_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_019e8a0d-3c0f-70d9-bf10-ee42dfbe2d7f" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-70d9-bf10-ee42dfbe2d7f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7d54-a583-3cfa29eedbe4" 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_019e8a0d-3c0f-70d9-bf10-ee42dfbe2d7f" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7d54-a583-3cfa29eedbe4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019e8a0d-3c0f-71ef-9a56-d7a1a568828a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7d54-a583-3cfa29eedbe4" xlink:to="loc_us-gaap_SecuredDebtMember_019e8a0d-3c0f-71ef-9a56-d7a1a568828a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-79c1-a76d-64044989ebab" 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_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7761-8177-f870442ff771" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-79c1-a76d-64044989ebab" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-79c1-a76d-64044989ebab_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_019e8a0d-3c0f-79c1-a76d-64044989ebab" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-79c1-a76d-64044989ebab_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7d82-a23a-a8ebf8e02f07" 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_019e8a0d-3c0f-79c1-a76d-64044989ebab" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7d82-a23a-a8ebf8e02f07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_TheCreditFacilityMember_019e8a0d-3c0f-7378-af94-bdbe8aeaf189" xlink:href="esi-20260630.xsd#esi_TheCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7d82-a23a-a8ebf8e02f07" xlink:to="loc_esi_TheCreditFacilityMember_019e8a0d-3c0f-7378-af94-bdbe8aeaf189" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-7524-8c4a-aa93dbefb7dc" 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_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7761-8177-f870442ff771" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-7524-8c4a-aa93dbefb7dc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7524-8c4a-aa93dbefb7dc_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_019e8a0d-3c0f-7524-8c4a-aa93dbefb7dc" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7524-8c4a-aa93dbefb7dc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-78c3-a344-1c80a84062e6" 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_019e8a0d-3c0f-7524-8c4a-aa93dbefb7dc" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-78c3-a344-1c80a84062e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-72eb-ae4b-40a803039527" 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_019e8a0d-3c0f-78c3-a344-1c80a84062e6" xlink:to="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-72eb-ae4b-40a803039527" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019e8a0d-3c0f-714a-91f5-db4cdbe2acce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7761-8177-f870442ff771" xlink:to="loc_us-gaap_AwardTypeAxis_019e8a0d-3c0f-714a-91f5-db4cdbe2acce" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e8a0d-3c0f-714a-91f5-db4cdbe2acce_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019e8a0d-3c0f-714a-91f5-db4cdbe2acce" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e8a0d-3c0f-714a-91f5-db4cdbe2acce_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e8a0d-3c0f-7170-8ce8-1f0cafc75812" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019e8a0d-3c0f-714a-91f5-db4cdbe2acce" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e8a0d-3c0f-7170-8ce8-1f0cafc75812" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019e8a0d-3c0f-7d83-96fd-8782e4db8867" 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_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e8a0d-3c0f-7170-8ce8-1f0cafc75812" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019e8a0d-3c0f-7d83-96fd-8782e4db8867" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019e8a0d-3c0f-74e8-b5e2-e771ff2ec0e2" 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_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7761-8177-f870442ff771" xlink:to="loc_srt_RangeAxis_019e8a0d-3c0f-74e8-b5e2-e771ff2ec0e2" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e8a0d-3c0f-74e8-b5e2-e771ff2ec0e2_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_019e8a0d-3c0f-74e8-b5e2-e771ff2ec0e2" xlink:to="loc_srt_RangeMember_019e8a0d-3c0f-74e8-b5e2-e771ff2ec0e2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e8a0d-3c0f-7fda-ad30-33edde04c712" 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_019e8a0d-3c0f-74e8-b5e2-e771ff2ec0e2" xlink:to="loc_srt_RangeMember_019e8a0d-3c0f-7fda-ad30-33edde04c712" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019e8a0d-3c0f-711b-85a4-97e510f8c904" 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_019e8a0d-3c0f-7fda-ad30-33edde04c712" xlink:to="loc_srt_MinimumMember_019e8a0d-3c0f-711b-85a4-97e510f8c904" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019e8a0d-3c0f-7ce6-a67f-d7d071c1cd36" 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_019e8a0d-3c0f-7fda-ad30-33edde04c712" xlink:to="loc_srt_MaximumMember_019e8a0d-3c0f-7ce6-a67f-d7d071c1cd36" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019e8a0d-3c0f-7edc-b05e-7fd940c9e845" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019e8a0d-3c0f-7edc-b05e-7fd940c9e845" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_019e8a0d-3c0f-7b74-a0da-c3aa8f45eda7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_019e8a0d-3c0f-7b74-a0da-c3aa8f45eda7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_019e8a0d-3c0f-7c28-9910-1dde7d140d89" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_019e8a0d-3c0f-7c28-9910-1dde7d140d89" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_BusinessCombinationContingentConsiderationCash_019e8a0d-3c0f-75c6-9745-bc65d32d1d5a" xlink:href="esi-20260630.xsd#esi_BusinessCombinationContingentConsiderationCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_esi_BusinessCombinationContingentConsiderationCash_019e8a0d-3c0f-75c6-9745-bc65d32d1d5a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_BusinessCombinationContingentConsiderationShares_019e8a0d-3c0f-759c-a13b-8fef5af799e8" xlink:href="esi-20260630.xsd#esi_BusinessCombinationContingentConsiderationShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_esi_BusinessCombinationContingentConsiderationShares_019e8a0d-3c0f-759c-a13b-8fef5af799e8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_019e8a0d-3c0f-7be2-b826-b9d1894d1930" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_019e8a0d-3c0f-7be2-b826-b9d1894d1930" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedWeightedAverageGrantDateFairValue_019e8a0d-3c0f-7de8-85b8-dc58deab830a" xlink:href="esi-20260630.xsd#esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedWeightedAverageGrantDateFairValue_019e8a0d-3c0f-7de8-85b8-dc58deab830a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches_019e8a0d-3c0f-7b9c-a90b-24c5600157e9" xlink:href="esi-20260630.xsd#esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches_019e8a0d-3c0f-7b9c-a90b-24c5600157e9" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_019e8a0d-3c0f-7b99-9131-74c5f44b11dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_019e8a0d-3c0f-7b99-9131-74c5f44b11dd" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPotentialTermDelay_019e8a0d-3c0f-758c-b4eb-7c62e8899735" xlink:href="esi-20260630.xsd#esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPotentialTermDelay"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPotentialTermDelay_019e8a0d-3c0f-758c-b4eb-7c62e8899735" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPotentialMaximumPercentage_019e8a0d-3c0f-7a50-90b3-92d4ad440319" xlink:href="esi-20260630.xsd#esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPotentialMaximumPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_esi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPotentialMaximumPercentage_019e8a0d-3c0f-7a50-90b3-92d4ad440319" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e8a0d-3c0f-72c8-a693-c999a9ad4a7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e8a0d-3c0f-72c8-a693-c999a9ad4a7e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_019e8a0d-3c0f-7b4f-b2a8-384e344d95a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7211-a19c-89d1b44b39e8" xlink:to="loc_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_019e8a0d-3c0f-7b4f-b2a8-384e344d95a6" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/ACQUISITIONSScheduleofAllocationofThePurchasePriceToTheIdentifiedAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#ACQUISITIONSScheduleofAllocationofThePurchasePriceToTheIdentifiedAssetsAcquiredandLiabilitiesAssumedDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/ACQUISITIONSScheduleofAllocationofThePurchasePriceToTheIdentifiedAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7ee0-a788-0b861b9f9d3d" 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_019e8a0d-3c0f-7f31-926e-954f8cf82a81" 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_019e8a0d-3c0f-7ee0-a788-0b861b9f9d3d" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7f31-926e-954f8cf82a81" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019e8a0d-3c0f-73bb-bd66-ba2efea18367" 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_019e8a0d-3c0f-7f31-926e-954f8cf82a81" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019e8a0d-3c0f-73bb-bd66-ba2efea18367" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-73bb-bd66-ba2efea18367_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_019e8a0d-3c0f-73bb-bd66-ba2efea18367" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-73bb-bd66-ba2efea18367_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7f94-b6d8-ad0599730dc6" 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_019e8a0d-3c0f-73bb-bd66-ba2efea18367" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7f94-b6d8-ad0599730dc6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_MicromaxMember_019e8a0d-3c0f-7227-8078-87eb28964543" xlink:href="esi-20260630.xsd#esi_MicromaxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7f94-b6d8-ad0599730dc6" xlink:to="loc_esi_MicromaxMember_019e8a0d-3c0f-7227-8078-87eb28964543" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_EFCMember_019e8a0d-3c0f-71c7-9f41-e3cd96b7cadc" xlink:href="esi-20260630.xsd#esi_EFCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7f94-b6d8-ad0599730dc6" xlink:to="loc_esi_EFCMember_019e8a0d-3c0f-71c7-9f41-e3cd96b7cadc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_019e8a0d-3c0f-726b-94da-42dc2c5fcc9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferredAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7ee0-a788-0b861b9f9d3d" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_019e8a0d-3c0f-726b-94da-42dc2c5fcc9c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019e8a0d-3c0f-7b07-85bf-f29ccf13dfce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_019e8a0d-3c0f-726b-94da-42dc2c5fcc9c" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019e8a0d-3c0f-7b07-85bf-f29ccf13dfce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_BusinessCombinationConsiderationTransferredContingentConsideration_019e8a0d-3c0f-77bd-8d0b-764e3967f637" xlink:href="esi-20260630.xsd#esi_BusinessCombinationConsiderationTransferredContingentConsideration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_019e8a0d-3c0f-726b-94da-42dc2c5fcc9c" xlink:to="loc_esi_BusinessCombinationConsiderationTransferredContingentConsideration_019e8a0d-3c0f-77bd-8d0b-764e3967f637" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019e8a0d-3c0f-7eb4-ba22-9f9e128075d9" 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_BusinessCombinationConsiderationTransferredAbstract_019e8a0d-3c0f-726b-94da-42dc2c5fcc9c" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019e8a0d-3c0f-7eb4-ba22-9f9e128075d9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-7ee0-a788-0b861b9f9d3d" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_019e8a0d-3c0f-7817-a4f4-4153820af36e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_019e8a0d-3c0f-7817-a4f4-4153820af36e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_019e8a0d-3c0f-7e10-b8aa-4847f99f615d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_019e8a0d-3c0f-7e10-b8aa-4847f99f615d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_019e8a0d-3c0f-7a1c-a3ba-76df473e3aa3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_019e8a0d-3c0f-7a1c-a3ba-76df473e3aa3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019e8a0d-3c0f-7b5c-95af-3634bb197635" 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_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019e8a0d-3c0f-7b5c-95af-3634bb197635" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_019e8a0d-3c0f-7367-9202-7628242852a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_019e8a0d-3c0f-7367-9202-7628242852a9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_019e8a0d-3c0f-7e0e-9fb9-c2a8e8f28252" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_019e8a0d-3c0f-7e0e-9fb9-c2a8e8f28252" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_019e8a0d-3c0f-7f6f-baea-d84a220c294e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_019e8a0d-3c0f-7f6f-baea-d84a220c294e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_019e8a0d-3c0f-765f-9025-cd8701db96a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_019e8a0d-3c0f-765f-9025-cd8701db96a5" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_019e8a0d-3c0f-7a59-aae8-f0fa7d2489d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_019e8a0d-3c0f-7a59-aae8-f0fa7d2489d6" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019e8a0d-3c0f-74d0-8997-5a7498972f33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019e8a0d-3c0f-74d0-8997-5a7498972f33" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e8a0d-3c0f-7485-af3c-f694c78a44f9" 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_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_Goodwill_019e8a0d-3c0f-7485-af3c-f694c78a44f9" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e8a0d-3c0f-7e84-b745-ed253f69df39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_019e8a0d-3c0f-74f4-8309-0271d7b1d034" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e8a0d-3c0f-7e84-b745-ed253f69df39" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/ACQUISITIONSScheduleofIdentifiableIntangibleAssetsRecordedinConjunctionwithAcquisitionsDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#ACQUISITIONSScheduleofIdentifiableIntangibleAssetsRecordedinConjunctionwithAcquisitionsDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/ACQUISITIONSScheduleofIdentifiableIntangibleAssetsRecordedinConjunctionwithAcquisitionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-704e-8fb9-230118e7c134" 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_019e8a0d-3c0f-7ebb-947d-dd2563484a22" 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_019e8a0d-3c0f-704e-8fb9-230118e7c134" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7ebb-947d-dd2563484a22" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019e8a0d-3c0f-713b-bbcd-e4a431d642df" 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_019e8a0d-3c0f-7ebb-947d-dd2563484a22" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019e8a0d-3c0f-713b-bbcd-e4a431d642df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-713b-bbcd-e4a431d642df_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_019e8a0d-3c0f-713b-bbcd-e4a431d642df" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-713b-bbcd-e4a431d642df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-786a-9518-74b5f18df644" 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_019e8a0d-3c0f-713b-bbcd-e4a431d642df" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-786a-9518-74b5f18df644" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_MicromaxMember_019e8a0d-3c0f-713a-97a2-3985f7752a86" xlink:href="esi-20260630.xsd#esi_MicromaxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-786a-9518-74b5f18df644" xlink:to="loc_esi_MicromaxMember_019e8a0d-3c0f-713a-97a2-3985f7752a86" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_EFCMember_019e8a0d-3c0f-7f98-986b-bbd141e53b75" xlink:href="esi-20260630.xsd#esi_EFCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-786a-9518-74b5f18df644" xlink:to="loc_esi_EFCMember_019e8a0d-3c0f-7f98-986b-bbd141e53b75" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-7977-9e43-45e04a74162b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019e8a0d-3c0f-7ebb-947d-dd2563484a22" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-7977-9e43-45e04a74162b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7977-9e43-45e04a74162b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-7977-9e43-45e04a74162b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7977-9e43-45e04a74162b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-716e-ad77-375701f98240" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-7977-9e43-45e04a74162b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-716e-ad77-375701f98240" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_019e8a0d-3c0f-775b-af57-26bd2ef27b19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-716e-ad77-375701f98240" xlink:to="loc_us-gaap_CustomerRelationshipsMember_019e8a0d-3c0f-775b-af57-26bd2ef27b19" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_019e8a0d-3c0f-77cb-bcfd-001865d59a66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-716e-ad77-375701f98240" xlink:to="loc_us-gaap_TradeNamesMember_019e8a0d-3c0f-77cb-bcfd-001865d59a66" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_019e8a0d-3c0f-72e0-8f91-3182746ee0d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-716e-ad77-375701f98240" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_019e8a0d-3c0f-72e0-8f91-3182746ee0d2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_019e8a0d-3c0f-78d0-81c8-06762550556c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-704e-8fb9-230118e7c134" xlink:to="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_019e8a0d-3c0f-78d0-81c8-06762550556c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019e8a0d-3c0f-7eba-b790-0cc5755d69a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019e8a0d-3c0f-704e-8fb9-230118e7c134" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019e8a0d-3c0f-7eba-b790-0cc5755d69a0" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/PROPERTYPLANTANDEQUIPMENTNETScheduleofMajorComponentsofPropertyPlantandEquipmentDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#PROPERTYPLANTANDEQUIPMENTNETScheduleofMajorComponentsofPropertyPlantandEquipmentDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/PROPERTYPLANTANDEQUIPMENTNETScheduleofMajorComponentsofPropertyPlantandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e8a0d-3c0f-7d10-a705-2d0e2442a38a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019e8a0d-3c0f-72ea-9945-fcd389edda02" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e8a0d-3c0f-7d10-a705-2d0e2442a38a" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019e8a0d-3c0f-72ea-9945-fcd389edda02" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e8a0d-3c0f-7b1e-9023-6ab6db32228e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019e8a0d-3c0f-72ea-9945-fcd389edda02" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e8a0d-3c0f-7b1e-9023-6ab6db32228e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e8a0d-3c0f-7b1e-9023-6ab6db32228e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e8a0d-3c0f-7b1e-9023-6ab6db32228e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e8a0d-3c0f-7b1e-9023-6ab6db32228e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e8a0d-3c0f-7f66-b92c-d22d1b18bffc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e8a0d-3c0f-7b1e-9023-6ab6db32228e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e8a0d-3c0f-7f66-b92c-d22d1b18bffc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_LandAndLeaseholdImprovementsMember_019e8a0d-3c0f-7717-93c5-368fdb613df0" xlink:href="esi-20260630.xsd#esi_LandAndLeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e8a0d-3c0f-7f66-b92c-d22d1b18bffc" xlink:to="loc_esi_LandAndLeaseholdImprovementsMember_019e8a0d-3c0f-7717-93c5-368fdb613df0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_019e8a0d-3c0f-7a49-93b9-d12d138805af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BuildingAndBuildingImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e8a0d-3c0f-7f66-b92c-d22d1b18bffc" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_019e8a0d-3c0f-7a49-93b9-d12d138805af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_MachineryEquipmentFixturesandSoftwareMember_019e8a0d-3c0f-7fb4-8435-a114a481b3f0" xlink:href="esi-20260630.xsd#esi_MachineryEquipmentFixturesandSoftwareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e8a0d-3c0f-7f66-b92c-d22d1b18bffc" xlink:to="loc_esi_MachineryEquipmentFixturesandSoftwareMember_019e8a0d-3c0f-7fb4-8435-a114a481b3f0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_019e8a0d-3c0f-7d23-8015-9bf16562b5a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e8a0d-3c0f-7f66-b92c-d22d1b18bffc" xlink:to="loc_us-gaap_ConstructionInProgressMember_019e8a0d-3c0f-7d23-8015-9bf16562b5a7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_019e8a0d-3c0f-7b3c-8b2b-9ab5bee43953" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e8a0d-3c0f-7d10-a705-2d0e2442a38a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_019e8a0d-3c0f-7b3c-8b2b-9ab5bee43953" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019e8a0d-3c0f-76ea-aa9e-8e58fb4345e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e8a0d-3c0f-7d10-a705-2d0e2442a38a" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019e8a0d-3c0f-76ea-aa9e-8e58fb4345e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019e8a0d-3c0f-721d-b945-a23e8896f9b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e8a0d-3c0f-7d10-a705-2d0e2442a38a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019e8a0d-3c0f-721d-b945-a23e8896f9b5" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/GOODWILLANDINTANGIBLEASSETSNETScheduleofChangesinCarryingAmountofGoodwillbySegmentDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#GOODWILLANDINTANGIBLEASSETSNETScheduleofChangesinCarryingAmountofGoodwillbySegmentDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/GOODWILLANDINTANGIBLEASSETSNETScheduleofChangesinCarryingAmountofGoodwillbySegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7852-8d77-520b39d3f5a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_019e8a0d-3c0f-759f-8403-e8c9006f0a35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7852-8d77-520b39d3f5a2" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_019e8a0d-3c0f-759f-8403-e8c9006f0a35" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019e8a0d-3c0f-700d-bd1b-75d22605638d" 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_ScheduleOfGoodwillTable_019e8a0d-3c0f-759f-8403-e8c9006f0a35" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019e8a0d-3c0f-700d-bd1b-75d22605638d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e8a0d-3c0f-700d-bd1b-75d22605638d_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_019e8a0d-3c0f-700d-bd1b-75d22605638d" xlink:to="loc_us-gaap_SegmentDomain_019e8a0d-3c0f-700d-bd1b-75d22605638d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e8a0d-3c0f-74f3-9f46-e2373ccf726a" 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_019e8a0d-3c0f-700d-bd1b-75d22605638d" xlink:to="loc_us-gaap_SegmentDomain_019e8a0d-3c0f-74f3-9f46-e2373ccf726a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ElectronicsSegmentMember_019e8a0d-3c0f-7d09-bf34-856a801a4cab" xlink:href="esi-20260630.xsd#esi_ElectronicsSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e8a0d-3c0f-74f3-9f46-e2373ccf726a" xlink:to="loc_esi_ElectronicsSegmentMember_019e8a0d-3c0f-7d09-bf34-856a801a4cab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_SpecialtiesSegmentMember_019e8a0d-3c0f-7ced-87be-2efe87275684" xlink:href="esi-20260630.xsd#esi_SpecialtiesSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e8a0d-3c0f-74f3-9f46-e2373ccf726a" xlink:to="loc_esi_SpecialtiesSegmentMember_019e8a0d-3c0f-7ced-87be-2efe87275684" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillRollForward_019e8a0d-3c0f-79cb-83d2-2d1c8ac1d2bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7852-8d77-520b39d3f5a2" xlink:to="loc_us-gaap_GoodwillRollForward_019e8a0d-3c0f-79cb-83d2-2d1c8ac1d2bb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e8a0d-3c0f-716f-9ba0-23b6c4737142" 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_GoodwillRollForward_019e8a0d-3c0f-79cb-83d2-2d1c8ac1d2bb" xlink:to="loc_us-gaap_Goodwill_019e8a0d-3c0f-716f-9ba0-23b6c4737142" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_019e8a0d-3c0f-72b7-b935-2883cb603e50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillAcquiredDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_019e8a0d-3c0f-79cb-83d2-2d1c8ac1d2bb" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_019e8a0d-3c0f-72b7-b935-2883cb603e50" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_019e8a0d-3c0f-7d86-bca4-2dc10d328d41" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_019e8a0d-3c0f-79cb-83d2-2d1c8ac1d2bb" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_019e8a0d-3c0f-7d86-bca4-2dc10d328d41" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e8a0d-3c0f-78c4-b43d-3dddc6a0959f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_019e8a0d-3c0f-761e-9e2a-a7193375654f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7852-8d77-520b39d3f5a2" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_019e8a0d-3c0f-761e-9e2a-a7193375654f" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/GOODWILLANDINTANGIBLEASSETSNETScheduleofMajorComponentsofIntangibleAssetsDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#GOODWILLANDINTANGIBLEASSETSNETScheduleofMajorComponentsofIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/GOODWILLANDINTANGIBLEASSETSNETScheduleofMajorComponentsofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019e8a0d-3c0f-7bb7-8f41-c9c479d83fc8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019e8a0d-3c0f-7e3b-88ef-d70cbb5b6667" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019e8a0d-3c0f-7bb7-8f41-c9c479d83fc8" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019e8a0d-3c0f-7e3b-88ef-d70cbb5b6667" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-73d3-b976-fb98a640b2f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019e8a0d-3c0f-7e3b-88ef-d70cbb5b6667" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-73d3-b976-fb98a640b2f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-73d3-b976-fb98a640b2f4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-73d3-b976-fb98a640b2f4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-73d3-b976-fb98a640b2f4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7772-9649-0ad14034bfb2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-73d3-b976-fb98a640b2f4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7772-9649-0ad14034bfb2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerListsMember_019e8a0d-3c0f-7d71-9a3a-74451e67c112" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerListsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7772-9649-0ad14034bfb2" xlink:to="loc_us-gaap_CustomerListsMember_019e8a0d-3c0f-7d71-9a3a-74451e67c112" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_019e8a0d-3c0f-74b2-8666-8abc6dc46869" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7772-9649-0ad14034bfb2" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_019e8a0d-3c0f-74b2-8666-8abc6dc46869" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_019e8a0d-3c0f-78e4-afba-696a92e9b306" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7772-9649-0ad14034bfb2" xlink:to="loc_us-gaap_TradeNamesMember_019e8a0d-3c0f-78e4-afba-696a92e9b306" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DistributionRightsMember_019e8a0d-3c0f-768e-be2d-c3996744a016" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DistributionRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7772-9649-0ad14034bfb2" xlink:to="loc_us-gaap_DistributionRightsMember_019e8a0d-3c0f-768e-be2d-c3996744a016" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e8a0d-3c0f-7e24-b9fc-0838ad5c6c50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019e8a0d-3c0f-7bb7-8f41-c9c479d83fc8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e8a0d-3c0f-7e24-b9fc-0838ad5c6c50" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e8a0d-3c0f-7fc2-b755-a3e5305ba7a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019e8a0d-3c0f-7bb7-8f41-c9c479d83fc8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e8a0d-3c0f-7fc2-b755-a3e5305ba7a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e8a0d-3c0f-769d-a4e3-84c58b90727f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019e8a0d-3c0f-7bb7-8f41-c9c479d83fc8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e8a0d-3c0f-769d-a4e3-84c58b90727f" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/GOODWILLANDINTANGIBLEASSETSNETAdditionalInformationDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#GOODWILLANDINTANGIBLEASSETSNETAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/GOODWILLANDINTANGIBLEASSETSNETAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7c27-8692-4cf7cd95a24e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_019e8a0d-3c0f-79b5-b48c-17395895173f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7c27-8692-4cf7cd95a24e" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_019e8a0d-3c0f-79b5-b48c-17395895173f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_019e8a0d-3c0f-7514-ba1b-930ce66a51e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_019e8a0d-3c0f-79b5-b48c-17395895173f" xlink:to="loc_us-gaap_AssetAcquisitionAxis_019e8a0d-3c0f-7514-ba1b-930ce66a51e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019e8a0d-3c0f-7514-ba1b-930ce66a51e0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019e8a0d-3c0f-7514-ba1b-930ce66a51e0" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019e8a0d-3c0f-7514-ba1b-930ce66a51e0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019e8a0d-3c0f-73e9-b3ae-de5d0b210b51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019e8a0d-3c0f-7514-ba1b-930ce66a51e0" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019e8a0d-3c0f-73e9-b3ae-de5d0b210b51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_KuprionMember_019e8a0d-3c0f-7095-a22c-846d8dd63322" xlink:href="esi-20260630.xsd#esi_KuprionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_019e8a0d-3c0f-73e9-b3ae-de5d0b210b51" xlink:to="loc_esi_KuprionMember_019e8a0d-3c0f-7095-a22c-846d8dd63322" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-7380-a61d-0db882d4e417" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_019e8a0d-3c0f-79b5-b48c-17395895173f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-7380-a61d-0db882d4e417" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7380-a61d-0db882d4e417_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-7380-a61d-0db882d4e417" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-7380-a61d-0db882d4e417_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-77c1-adfa-f86b49268b0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019e8a0d-3c0f-7380-a61d-0db882d4e417" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-77c1-adfa-f86b49268b0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_019e8a0d-3c0f-7bdc-af46-866fbaa1d58f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019e8a0d-3c0f-77c1-adfa-f86b49268b0a" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_019e8a0d-3c0f-7bdc-af46-866fbaa1d58f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_019e8a0d-3c0f-7791-b2eb-fe0d3766023a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7c27-8692-4cf7cd95a24e" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_019e8a0d-3c0f-7791-b2eb-fe0d3766023a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_019e8a0d-3c0f-767f-840e-58b8a9e0359a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7c27-8692-4cf7cd95a24e" xlink:to="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_019e8a0d-3c0f-767f-840e-58b8a9e0359a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionConsiderationTransferredContingentConsideration_019e8a0d-3c0f-74a3-a102-684ff8d249b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionConsiderationTransferredContingentConsideration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7c27-8692-4cf7cd95a24e" xlink:to="loc_us-gaap_AssetAcquisitionConsiderationTransferredContingentConsideration_019e8a0d-3c0f-74a3-a102-684ff8d249b0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_AssetAcquisitionDeferredTaxes_019e8a0d-3c0f-7c38-8bc8-f0f078162e27" xlink:href="esi-20260630.xsd#esi_AssetAcquisitionDeferredTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7c27-8692-4cf7cd95a24e" xlink:to="loc_esi_AssetAcquisitionDeferredTaxes_019e8a0d-3c0f-7c38-8bc8-f0f078162e27" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_019e8a0d-3c0f-7341-817d-4e41daf696f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7c27-8692-4cf7cd95a24e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_019e8a0d-3c0f-7341-817d-4e41daf696f3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_PaymentForAssetAcquisitionNetOfCashAcquired_019e8a0d-3c0f-78f8-a35a-701218ca7747" xlink:href="esi-20260630.xsd#esi_PaymentForAssetAcquisitionNetOfCashAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019e8a0d-3c0f-7c27-8692-4cf7cd95a24e" xlink:to="loc_esi_PaymentForAssetAcquisitionNetOfCashAcquired_019e8a0d-3c0f-78f8-a35a-701218ca7747" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/DEBTScheduleofDebtDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#DEBTScheduleofDebtDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/DEBTScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" 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_019e8a0d-3c0f-70c3-80ab-ba2686d4911a" 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_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_DebtInstrumentTable_019e8a0d-3c0f-70c3-80ab-ba2686d4911a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-79d4-ab98-23a45279e8dd" 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_019e8a0d-3c0f-70c3-80ab-ba2686d4911a" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-79d4-ab98-23a45279e8dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-79d4-ab98-23a45279e8dd_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_019e8a0d-3c0f-79d4-ab98-23a45279e8dd" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-79d4-ab98-23a45279e8dd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7771-b81f-74dec45c5eca" 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_019e8a0d-3c0f-79d4-ab98-23a45279e8dd" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7771-b81f-74dec45c5eca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_TheCreditFacilityMember_019e8a0d-3c0f-7916-91b1-66d3a4a0e78e" xlink:href="esi-20260630.xsd#esi_TheCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7771-b81f-74dec45c5eca" xlink:to="loc_esi_TheCreditFacilityMember_019e8a0d-3c0f-7916-91b1-66d3a4a0e78e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_USDSeniorNotesDueTwoThousandAndTwentyEightMember_019e8a0d-3c0f-7797-8e84-e8d0c6e8a904" xlink:href="esi-20260630.xsd#esi_USDSeniorNotesDueTwoThousandAndTwentyEightMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7771-b81f-74dec45c5eca" xlink:to="loc_esi_USDSeniorNotesDueTwoThousandAndTwentyEightMember_019e8a0d-3c0f-7797-8e84-e8d0c6e8a904" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-70fa-a9a6-341a1a544047" 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_019e8a0d-3c0f-70c3-80ab-ba2686d4911a" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-70fa-a9a6-341a1a544047" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-70fa-a9a6-341a1a544047_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_019e8a0d-3c0f-70fa-a9a6-341a1a544047" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-70fa-a9a6-341a1a544047_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7c7a-b469-8260f4a6366b" 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_019e8a0d-3c0f-70fa-a9a6-341a1a544047" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7c7a-b469-8260f4a6366b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-7b93-9e2b-4e04e5138b5e" 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_019e8a0d-3c0f-7c7a-b469-8260f4a6366b" xlink:to="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-7b93-9e2b-4e04e5138b5e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019e8a0d-3c0f-7bad-a51f-5e3006533fbb" 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_019e8a0d-3c0f-7c7a-b469-8260f4a6366b" xlink:to="loc_us-gaap_SeniorNotesMember_019e8a0d-3c0f-7bad-a51f-5e3006533fbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-753f-b0fb-fcb0fa139ea7" 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_019e8a0d-3c0f-70c3-80ab-ba2686d4911a" xlink:to="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-753f-b0fb-fcb0fa139ea7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-753f-b0fb-fcb0fa139ea7_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_019e8a0d-3c0f-753f-b0fb-fcb0fa139ea7" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-753f-b0fb-fcb0fa139ea7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7da3-98ab-c16fb815fa61" 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_019e8a0d-3c0f-753f-b0fb-fcb0fa139ea7" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7da3-98ab-c16fb815fa61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019e8a0d-3c0f-733b-9c27-a38af870a707" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7da3-98ab-c16fb815fa61" xlink:to="loc_us-gaap_SecuredDebtMember_019e8a0d-3c0f-733b-9c27-a38af870a707" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e8a0d-3c0f-7af4-9010-0e8ecba328ec" 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_019e8a0d-3c0f-7da3-98ab-c16fb815fa61" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e8a0d-3c0f-7af4-9010-0e8ecba328ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019e8a0d-3c0f-7bb8-be51-0e3608d08054" 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_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019e8a0d-3c0f-7bb8-be51-0e3608d08054" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e8a0d-3c0f-7ba3-a556-a66449c57127" 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_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e8a0d-3c0f-7ba3-a556-a66449c57127" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e8a0d-3c0f-728c-a58d-05e84911c9ab" 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_DebtInstrumentLineItems_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e8a0d-3c0f-728c-a58d-05e84911c9ab" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_019e8a0d-3c0f-7fa7-8904-c28b406de236" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_019e8a0d-3c0f-7fa7-8904-c28b406de236" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_019e8a0d-3c0f-7569-9041-778efa03fc9a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_019e8a0d-3c0f-7569-9041-778efa03fc9a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_019e8a0d-3c0f-75a0-ada3-7622e27ff3c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_019e8a0d-3c0f-75a0-ada3-7622e27ff3c6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019e8a0d-3c0f-7cbc-9f05-4016a60a77bc" 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_DebtInstrumentLineItems_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019e8a0d-3c0f-7cbc-9f05-4016a60a77bc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e8a0d-3c0f-7749-b30d-3f70d9652e8a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-75d9-a5b0-2af4c85a58c2" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e8a0d-3c0f-7749-b30d-3f70d9652e8a" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/DEBTCreditAgreementDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#DEBTCreditAgreementDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/DEBTCreditAgreementDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019e8a0d-3c0f-72cf-8f8b-c0233122f8ad" 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_019e8a0d-3c0f-7770-bf0f-d3d22a45b204" 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_019e8a0d-3c0f-72cf-8f8b-c0233122f8ad" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019e8a0d-3c0f-7770-bf0f-d3d22a45b204" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-7bfe-ac3d-c877d1fb675e" 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_019e8a0d-3c0f-7770-bf0f-d3d22a45b204" xlink:to="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-7bfe-ac3d-c877d1fb675e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7bfe-ac3d-c877d1fb675e_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_019e8a0d-3c0f-7bfe-ac3d-c877d1fb675e" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7bfe-ac3d-c877d1fb675e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7c2f-bc3e-b5185ca83de8" 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_019e8a0d-3c0f-7bfe-ac3d-c877d1fb675e" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7c2f-bc3e-b5185ca83de8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019e8a0d-3c0f-73e9-b7f0-b9ca30891b7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7c2f-bc3e-b5185ca83de8" xlink:to="loc_us-gaap_SecuredDebtMember_019e8a0d-3c0f-73e9-b7f0-b9ca30891b7e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e8a0d-3c0f-7f67-a454-f787764ab47c" 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_019e8a0d-3c0f-7c2f-bc3e-b5185ca83de8" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e8a0d-3c0f-7f67-a454-f787764ab47c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-7811-a3c2-8e3ecf83ac5e" 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_019e8a0d-3c0f-7770-bf0f-d3d22a45b204" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-7811-a3c2-8e3ecf83ac5e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7811-a3c2-8e3ecf83ac5e_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_019e8a0d-3c0f-7811-a3c2-8e3ecf83ac5e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7811-a3c2-8e3ecf83ac5e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7885-9859-65e591b3d857" 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_019e8a0d-3c0f-7811-a3c2-8e3ecf83ac5e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7885-9859-65e591b3d857" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-758d-aafb-6313d54972d7" 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_019e8a0d-3c0f-7885-9859-65e591b3d857" xlink:to="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-758d-aafb-6313d54972d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-7847-9498-514278b2d660" 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_019e8a0d-3c0f-7770-bf0f-d3d22a45b204" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-7847-9498-514278b2d660" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7847-9498-514278b2d660_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_019e8a0d-3c0f-7847-9498-514278b2d660" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7847-9498-514278b2d660_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-78ee-8e56-af84fb91a25c" 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_019e8a0d-3c0f-7847-9498-514278b2d660" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-78ee-8e56-af84fb91a25c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_TheCreditFacilityMember_019e8a0d-3c0f-75ef-ba57-db00b674372c" xlink:href="esi-20260630.xsd#esi_TheCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-78ee-8e56-af84fb91a25c" xlink:to="loc_esi_TheCreditFacilityMember_019e8a0d-3c0f-75ef-ba57-db00b674372c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019e8a0d-3c0f-75b4-983a-de692fc37049" 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_019e8a0d-3c0f-7770-bf0f-d3d22a45b204" xlink:to="loc_us-gaap_VariableRateAxis_019e8a0d-3c0f-75b4-983a-de692fc37049" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019e8a0d-3c0f-75b4-983a-de692fc37049_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_019e8a0d-3c0f-75b4-983a-de692fc37049" xlink:to="loc_us-gaap_VariableRateDomain_019e8a0d-3c0f-75b4-983a-de692fc37049_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019e8a0d-3c0f-7e76-be12-41eda490406f" 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_019e8a0d-3c0f-75b4-983a-de692fc37049" xlink:to="loc_us-gaap_VariableRateDomain_019e8a0d-3c0f-7e76-be12-41eda490406f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_SOFRFloorMember_019e8a0d-3c0f-788e-acc6-6a20cfd8b8ea" xlink:href="esi-20260630.xsd#esi_SOFRFloorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019e8a0d-3c0f-7e76-be12-41eda490406f" xlink:to="loc_esi_SOFRFloorMember_019e8a0d-3c0f-788e-acc6-6a20cfd8b8ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019e8a0d-3c0f-7e2e-86c0-2357889e5dfd" 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_019e8a0d-3c0f-7e76-be12-41eda490406f" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019e8a0d-3c0f-7e2e-86c0-2357889e5dfd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e8a0d-3c0f-73e4-9839-5e4c1a1833cb" 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_019e8a0d-3c0f-72cf-8f8b-c0233122f8ad" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019e8a0d-3c0f-73e4-9839-5e4c1a1833cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019e8a0d-3c0f-75d8-83c2-049ec734a65e" 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_LineOfCreditFacilityLineItems_019e8a0d-3c0f-72cf-8f8b-c0233122f8ad" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019e8a0d-3c0f-75d8-83c2-049ec734a65e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e8a0d-3c0f-7246-8876-b4993ccb8189" 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_019e8a0d-3c0f-72cf-8f8b-c0233122f8ad" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e8a0d-3c0f-7246-8876-b4993ccb8189" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_019e8a0d-3c0f-74ed-8b93-c5280a9aecdd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019e8a0d-3c0f-72cf-8f8b-c0233122f8ad" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_019e8a0d-3c0f-74ed-8b93-c5280a9aecdd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019e8a0d-3c0f-7cc7-bb4b-8b90474a6e30" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019e8a0d-3c0f-72cf-8f8b-c0233122f8ad" xlink:to="loc_us-gaap_DebtInstrumentTerm_019e8a0d-3c0f-7cc7-bb4b-8b90474a6e30" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity_019e8a0d-3c0f-7af5-af41-a82bfbc95c7f" xlink:href="esi-20260630.xsd#esi_LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019e8a0d-3c0f-72cf-8f8b-c0233122f8ad" xlink:to="loc_esi_LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity_019e8a0d-3c0f-7af5-af41-a82bfbc95c7f" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/DEBTGuaranteesCovenantsandEventsofDefaultDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#DEBTGuaranteesCovenantsandEventsofDefaultDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/DEBTGuaranteesCovenantsandEventsofDefaultDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-7b95-9c24-c0bda1fcbfe7" 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_019e8a0d-3c0f-75ad-882c-d2afad84777e" 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_019e8a0d-3c0f-7b95-9c24-c0bda1fcbfe7" xlink:to="loc_us-gaap_DebtInstrumentTable_019e8a0d-3c0f-75ad-882c-d2afad84777e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-708c-9554-2bcd6b09ef9f" 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_019e8a0d-3c0f-75ad-882c-d2afad84777e" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-708c-9554-2bcd6b09ef9f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-708c-9554-2bcd6b09ef9f_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_019e8a0d-3c0f-708c-9554-2bcd6b09ef9f" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-708c-9554-2bcd6b09ef9f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7ba7-9eff-5762974238af" 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_019e8a0d-3c0f-708c-9554-2bcd6b09ef9f" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7ba7-9eff-5762974238af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019e8a0d-3c0f-76f4-9738-ba431ec0ff01" 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_019e8a0d-3c0f-7ba7-9eff-5762974238af" xlink:to="loc_us-gaap_SeniorNotesMember_019e8a0d-3c0f-76f4-9738-ba431ec0ff01" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-7bfe-8380-358ced2510be" 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_019e8a0d-3c0f-7ba7-9eff-5762974238af" xlink:to="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-7bfe-8380-358ced2510be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-7e37-807f-a2a3e2cdceb0" 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_019e8a0d-3c0f-75ad-882c-d2afad84777e" xlink:to="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-7e37-807f-a2a3e2cdceb0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7e37-807f-a2a3e2cdceb0_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_019e8a0d-3c0f-7e37-807f-a2a3e2cdceb0" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7e37-807f-a2a3e2cdceb0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7abb-91be-aa7c468e293c" 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_019e8a0d-3c0f-7e37-807f-a2a3e2cdceb0" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7abb-91be-aa7c468e293c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e8a0d-3c0f-7867-89e0-43589f8d185e" 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_019e8a0d-3c0f-7abb-91be-aa7c468e293c" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e8a0d-3c0f-7867-89e0-43589f8d185e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_DebtInstrumentCovenantOutstandingBorrowingsLeverageThreshold_019e8a0d-3c0f-7ee5-b648-3541aa2806ab" xlink:href="esi-20260630.xsd#esi_DebtInstrumentCovenantOutstandingBorrowingsLeverageThreshold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-7b95-9c24-c0bda1fcbfe7" xlink:to="loc_esi_DebtInstrumentCovenantOutstandingBorrowingsLeverageThreshold_019e8a0d-3c0f-7ee5-b648-3541aa2806ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_DebtInstrumentCovenantFirstLienNetLeverageRatio_019e8a0d-3c0f-731d-a177-b728999e40af" xlink:href="esi-20260630.xsd#esi_DebtInstrumentCovenantFirstLienNetLeverageRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-7b95-9c24-c0bda1fcbfe7" xlink:to="loc_esi_DebtInstrumentCovenantFirstLienNetLeverageRatio_019e8a0d-3c0f-731d-a177-b728999e40af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_019e8a0d-3c0f-7b09-8343-380afe3c7e61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-7b95-9c24-c0bda1fcbfe7" xlink:to="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_019e8a0d-3c0f-7b09-8343-380afe3c7e61" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/DEBTSeniorNotesDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#DEBTSeniorNotesDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/DEBTSeniorNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-72c4-8d97-40bfd540e733" 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_019e8a0d-3c0f-7835-87e6-6eba9c2e72f7" 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_019e8a0d-3c0f-72c4-8d97-40bfd540e733" xlink:to="loc_us-gaap_DebtInstrumentTable_019e8a0d-3c0f-7835-87e6-6eba9c2e72f7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-72ce-b895-71f4f3345026" 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_019e8a0d-3c0f-7835-87e6-6eba9c2e72f7" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-72ce-b895-71f4f3345026" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-72ce-b895-71f4f3345026_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_019e8a0d-3c0f-72ce-b895-71f4f3345026" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-72ce-b895-71f4f3345026_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7243-8201-d73eb349a465" 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_019e8a0d-3c0f-72ce-b895-71f4f3345026" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7243-8201-d73eb349a465" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019e8a0d-3c0f-74fe-ab1c-47d51f9f3e17" 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_019e8a0d-3c0f-7243-8201-d73eb349a465" xlink:to="loc_us-gaap_SeniorNotesMember_019e8a0d-3c0f-74fe-ab1c-47d51f9f3e17" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-7fb7-ab2c-8ccf858cc2a3" 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_019e8a0d-3c0f-7835-87e6-6eba9c2e72f7" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-7fb7-ab2c-8ccf858cc2a3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7fb7-ab2c-8ccf858cc2a3_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_019e8a0d-3c0f-7fb7-ab2c-8ccf858cc2a3" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7fb7-ab2c-8ccf858cc2a3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7775-87c4-c600511d5ab6" 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_019e8a0d-3c0f-7fb7-ab2c-8ccf858cc2a3" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7775-87c4-c600511d5ab6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_USDSeniorNotesDueTwoThousandAndTwentyEightMember_019e8a0d-3c0f-741c-b08f-f35a14322886" xlink:href="esi-20260630.xsd#esi_USDSeniorNotesDueTwoThousandAndTwentyEightMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7775-87c4-c600511d5ab6" xlink:to="loc_esi_USDSeniorNotesDueTwoThousandAndTwentyEightMember_019e8a0d-3c0f-741c-b08f-f35a14322886" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e8a0d-3c0f-7156-893a-9c2bc0c6721b" 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_DebtInstrumentLineItems_019e8a0d-3c0f-72c4-8d97-40bfd540e733" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e8a0d-3c0f-7156-893a-9c2bc0c6721b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/DEBTLinesofCreditandOtherDebtFacilitiesDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#DEBTLinesofCreditandOtherDebtFacilitiesDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/DEBTLinesofCreditandOtherDebtFacilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-7686-8aae-1b58fba76643" 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_019e8a0d-3c0f-7c8a-88e8-56b6e13c3896" 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_019e8a0d-3c0f-7686-8aae-1b58fba76643" xlink:to="loc_us-gaap_DebtInstrumentTable_019e8a0d-3c0f-7c8a-88e8-56b6e13c3896" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-7593-a811-85d5fd336348" 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_019e8a0d-3c0f-7c8a-88e8-56b6e13c3896" xlink:to="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-7593-a811-85d5fd336348" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7593-a811-85d5fd336348_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_019e8a0d-3c0f-7593-a811-85d5fd336348" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7593-a811-85d5fd336348_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7459-b2f3-6b23c5d9f068" 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_019e8a0d-3c0f-7593-a811-85d5fd336348" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7459-b2f3-6b23c5d9f068" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e8a0d-3c0f-7168-a08c-d1e978a1badc" 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_019e8a0d-3c0f-7459-b2f3-6b23c5d9f068" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e8a0d-3c0f-7168-a08c-d1e978a1badc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-7a76-a06c-1f86f454faea" 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_019e8a0d-3c0f-7c8a-88e8-56b6e13c3896" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-7a76-a06c-1f86f454faea" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7a76-a06c-1f86f454faea_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_019e8a0d-3c0f-7a76-a06c-1f86f454faea" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7a76-a06c-1f86f454faea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7c8f-82d2-787ee2299ff7" 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_019e8a0d-3c0f-7a76-a06c-1f86f454faea" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7c8f-82d2-787ee2299ff7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_LinesOfCreditAndOtherDebtFacilitiesMember_019e8a0d-3c0f-7c29-b885-6ff23a820974" xlink:href="esi-20260630.xsd#esi_LinesOfCreditAndOtherDebtFacilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7c8f-82d2-787ee2299ff7" xlink:to="loc_esi_LinesOfCreditAndOtherDebtFacilitiesMember_019e8a0d-3c0f-7c29-b885-6ff23a820974" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-78cf-92a3-76dd5a5a093a" 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_019e8a0d-3c0f-7c8a-88e8-56b6e13c3896" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-78cf-92a3-76dd5a5a093a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-78cf-92a3-76dd5a5a093a_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_019e8a0d-3c0f-78cf-92a3-76dd5a5a093a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-78cf-92a3-76dd5a5a093a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7e92-85ff-bfa524ee9f88" 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_019e8a0d-3c0f-78cf-92a3-76dd5a5a093a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7e92-85ff-bfa524ee9f88" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_019e8a0d-3c0f-7621-9794-0dde6801ac04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7e92-85ff-bfa524ee9f88" xlink:to="loc_us-gaap_LetterOfCreditMember_019e8a0d-3c0f-7621-9794-0dde6801ac04" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_019e8a0d-3c0f-74db-9d09-6df211d2e9b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-7686-8aae-1b58fba76643" xlink:to="loc_us-gaap_LineOfCredit_019e8a0d-3c0f-74db-9d09-6df211d2e9b3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_019e8a0d-3c0f-710e-8475-8e656dcfad63" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e8a0d-3c0f-7686-8aae-1b58fba76643" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_019e8a0d-3c0f-710e-8475-8e656dcfad63" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/FINANCIALINSTRUMENTSDerivativesandHedgingDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#FINANCIALINSTRUMENTSDerivativesandHedgingDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/FINANCIALINSTRUMENTSDerivativesandHedgingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019e8a0d-3c0f-7129-8d97-c97e69967f85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019e8a0d-3c0f-7129-8d97-c97e69967f85" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-7fe3-b742-da61690a6705" 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_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019e8a0d-3c0f-7129-8d97-c97e69967f85" xlink:to="loc_us-gaap_CreditFacilityAxis_019e8a0d-3c0f-7fe3-b742-da61690a6705" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7fe3-b742-da61690a6705_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_019e8a0d-3c0f-7fe3-b742-da61690a6705" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7fe3-b742-da61690a6705_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7e1d-8c85-f6d105f6772a" 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_019e8a0d-3c0f-7fe3-b742-da61690a6705" xlink:to="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7e1d-8c85-f6d105f6772a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019e8a0d-3c0f-7e07-83ea-d804d88d867c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019e8a0d-3c0f-7e1d-8c85-f6d105f6772a" xlink:to="loc_us-gaap_SecuredDebtMember_019e8a0d-3c0f-7e07-83ea-d804d88d867c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-7b8e-9bbd-31eb5cf96666" 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_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019e8a0d-3c0f-7129-8d97-c97e69967f85" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e8a0d-3c0f-7b8e-9bbd-31eb5cf96666" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7b8e-9bbd-31eb5cf96666_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_019e8a0d-3c0f-7b8e-9bbd-31eb5cf96666" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7b8e-9bbd-31eb5cf96666_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7178-9f92-2ee5e3cf9e80" 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_019e8a0d-3c0f-7b8e-9bbd-31eb5cf96666" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7178-9f92-2ee5e3cf9e80" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_019e8a0d-3c0f-757e-a017-e7f84fa5147b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7178-9f92-2ee5e3cf9e80" xlink:to="loc_us-gaap_LetterOfCreditMember_019e8a0d-3c0f-757e-a017-e7f84fa5147b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_TheCreditFacilityMember_019e8a0d-3c0f-73a8-b84e-8c276e4909b3" xlink:href="esi-20260630.xsd#esi_TheCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e8a0d-3c0f-7178-9f92-2ee5e3cf9e80" xlink:to="loc_esi_TheCreditFacilityMember_019e8a0d-3c0f-73a8-b84e-8c276e4909b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-7e93-8e28-6bc65a28067d" 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_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019e8a0d-3c0f-7129-8d97-c97e69967f85" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e8a0d-3c0f-7e93-8e28-6bc65a28067d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7e93-8e28-6bc65a28067d_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_019e8a0d-3c0f-7e93-8e28-6bc65a28067d" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-7e93-8e28-6bc65a28067d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-70f1-956e-40ef640431c0" 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_019e8a0d-3c0f-7e93-8e28-6bc65a28067d" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e8a0d-3c0f-70f1-956e-40ef640431c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-7704-a2ae-cd6afa050812" 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_019e8a0d-3c0f-70f1-956e-40ef640431c0" xlink:to="loc_us-gaap_LineOfCreditMember_019e8a0d-3c0f-7704-a2ae-cd6afa050812" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019e8a0d-3c0f-7db6-862c-e89d48f712a1" 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_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019e8a0d-3c0f-7129-8d97-c97e69967f85" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019e8a0d-3c0f-7db6-862c-e89d48f712a1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7db6-862c-e89d48f712a1_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_019e8a0d-3c0f-7db6-862c-e89d48f712a1" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7db6-862c-e89d48f712a1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-77ea-939e-c50a01ef4cf3" 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_019e8a0d-3c0f-7db6-862c-e89d48f712a1" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-77ea-939e-c50a01ef4cf3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_019e8a0d-3c0f-7582-b481-244291edb429" 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_019e8a0d-3c0f-77ea-939e-c50a01ef4cf3" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_019e8a0d-3c0f-7582-b481-244291edb429" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019e8a0d-3c0f-771b-b990-ff8b95fd534d" 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_019e8a0d-3c0f-77ea-939e-c50a01ef4cf3" xlink:to="loc_us-gaap_InterestRateSwapMember_019e8a0d-3c0f-771b-b990-ff8b95fd534d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019e8a0d-3c0f-7958-ba9a-704a51bd55df" 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_019e8a0d-3c0f-77ea-939e-c50a01ef4cf3" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019e8a0d-3c0f-7958-ba9a-704a51bd55df" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommoditiesInvestmentMember_019e8a0d-3c0f-7c3e-b901-d6570b1b79c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommoditiesInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-77ea-939e-c50a01ef4cf3" xlink:to="loc_us-gaap_CommoditiesInvestmentMember_019e8a0d-3c0f-7c3e-b901-d6570b1b79c1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_DerivativeInstrumentMaturityAxis_019e8a0d-3c0f-78bf-bf64-e2f8538455a4" xlink:href="esi-20260630.xsd#esi_DerivativeInstrumentMaturityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019e8a0d-3c0f-7129-8d97-c97e69967f85" xlink:to="loc_esi_DerivativeInstrumentMaturityAxis_019e8a0d-3c0f-78bf-bf64-e2f8538455a4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_DerivativeInstrumentMaturityDomain_019e8a0d-3c0f-78bf-bf64-e2f8538455a4_default" xlink:href="esi-20260630.xsd#esi_DerivativeInstrumentMaturityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_esi_DerivativeInstrumentMaturityAxis_019e8a0d-3c0f-78bf-bf64-e2f8538455a4" xlink:to="loc_esi_DerivativeInstrumentMaturityDomain_019e8a0d-3c0f-78bf-bf64-e2f8538455a4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_DerivativeInstrumentMaturityDomain_019e8a0d-3c0f-7a72-8875-c7d76175d577" xlink:href="esi-20260630.xsd#esi_DerivativeInstrumentMaturityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_esi_DerivativeInstrumentMaturityAxis_019e8a0d-3c0f-78bf-bf64-e2f8538455a4" xlink:to="loc_esi_DerivativeInstrumentMaturityDomain_019e8a0d-3c0f-7a72-8875-c7d76175d577" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_NotionalValueMaturityDecember2028Member_019e8a0d-3c0f-7432-a5ef-36da791052f1" xlink:href="esi-20260630.xsd#esi_NotionalValueMaturityDecember2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_DerivativeInstrumentMaturityDomain_019e8a0d-3c0f-7a72-8875-c7d76175d577" xlink:to="loc_esi_NotionalValueMaturityDecember2028Member_019e8a0d-3c0f-7432-a5ef-36da791052f1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_NotionalValueMaturityDecember2029Member_019e8a0d-3c0f-7319-ba5c-67731c6a9084" xlink:href="esi-20260630.xsd#esi_NotionalValueMaturityDecember2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_DerivativeInstrumentMaturityDomain_019e8a0d-3c0f-7a72-8875-c7d76175d577" xlink:to="loc_esi_NotionalValueMaturityDecember2029Member_019e8a0d-3c0f-7319-ba5c-67731c6a9084" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019e8a0d-3c0f-75eb-aa00-71e185a1a210" 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_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019e8a0d-3c0f-7129-8d97-c97e69967f85" xlink:to="loc_us-gaap_HedgingDesignationAxis_019e8a0d-3c0f-75eb-aa00-71e185a1a210" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019e8a0d-3c0f-75eb-aa00-71e185a1a210_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_019e8a0d-3c0f-75eb-aa00-71e185a1a210" xlink:to="loc_us-gaap_HedgingDesignationDomain_019e8a0d-3c0f-75eb-aa00-71e185a1a210_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019e8a0d-3c0f-7bf9-8d94-e605c82e2107" 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_019e8a0d-3c0f-75eb-aa00-71e185a1a210" xlink:to="loc_us-gaap_HedgingDesignationDomain_019e8a0d-3c0f-7bf9-8d94-e605c82e2107" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_019e8a0d-3c0f-7dee-be31-e18cf1317366" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019e8a0d-3c0f-7bf9-8d94-e605c82e2107" xlink:to="loc_us-gaap_NondesignatedMember_019e8a0d-3c0f-7dee-be31-e18cf1317366" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAmountOfHedgedItem_019e8a0d-3c0f-74a8-ac40-28c6697f9507" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAmountOfHedgedItem"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_DerivativeAmountOfHedgedItem_019e8a0d-3c0f-74a8-ac40-28c6697f9507" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019e8a0d-3c0f-7c90-aefd-d3e12b526d66" 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_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019e8a0d-3c0f-7c90-aefd-d3e12b526d66" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e8a0d-3c0f-7f41-baca-b132445273fb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e8a0d-3c0f-7f41-baca-b132445273fb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019e8a0d-3c0f-77bf-88a4-17be076adad3" 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_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_DerivativeAssets_019e8a0d-3c0f-77bf-88a4-17be076adad3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019e8a0d-3c0f-732c-8b81-b974b90d50ec" 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_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_DerivativeLiabilities_019e8a0d-3c0f-732c-8b81-b974b90d50ec" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet_019e8a0d-3c0f-745a-93ec-f869522db82d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet_019e8a0d-3c0f-745a-93ec-f869522db82d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeRemainingMaturity1_019e8a0d-3c0f-7b97-bfc4-c9eb4c9bc3a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeRemainingMaturity1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_DerivativeRemainingMaturity1_019e8a0d-3c0f-7b97-bfc4-c9eb4c9bc3a9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent_019e8a0d-3c0f-73fe-b729-bfa004c6913d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019e8a0d-3c0f-7400-9c25-5ea5288a0607" xlink:to="loc_us-gaap_DerivativeLiabilitiesCurrent_019e8a0d-3c0f-73fe-b729-bfa004c6913d" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/FINANCIALINSTRUMENTSScheduleofFairValueMeasurementsDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#FINANCIALINSTRUMENTSScheduleofFairValueMeasurementsDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/FINANCIALINSTRUMENTSScheduleofFairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7cd3-903a-b382f0734e8f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7cd3-903a-b382f0734e8f" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019e8a0d-3c0f-74de-9d29-709dd4311830" 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_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019e8a0d-3c0f-74de-9d29-709dd4311830" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-74de-9d29-709dd4311830_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_019e8a0d-3c0f-74de-9d29-709dd4311830" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-74de-9d29-709dd4311830_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7f76-a359-3e4071c05dea" 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_019e8a0d-3c0f-74de-9d29-709dd4311830" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_019e8a0d-3c0f-780d-9ed3-c6d98504dfc6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:to="loc_us-gaap_ForeignExchangeContractMember_019e8a0d-3c0f-780d-9ed3-c6d98504dfc6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommoditiesInvestmentMember_019e8a0d-3c0f-790a-a22c-5a5814433473" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommoditiesInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:to="loc_us-gaap_CommoditiesInvestmentMember_019e8a0d-3c0f-790a-a22c-5a5814433473" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019e8a0d-3c0f-7489-a09d-169b4c4670d3" 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_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:to="loc_us-gaap_InterestRateSwapMember_019e8a0d-3c0f-7489-a09d-169b4c4670d3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_019e8a0d-3c0f-7119-853a-7473f1555269" 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_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_019e8a0d-3c0f-7119-853a-7473f1555269" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9" 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_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9_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_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e8a0d-3c0f-7071-80d6-b1a1150f576f" 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_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e8a0d-3c0f-7071-80d6-b1a1150f576f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019e8a0d-3c0f-78c6-a882-68dcba627f1f" 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_019e8a0d-3c0f-7071-80d6-b1a1150f576f" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019e8a0d-3c0f-78c6-a882-68dcba627f1f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019e8a0d-3c0f-7bc1-a65d-2f4ef8aab922" 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_019e8a0d-3c0f-7071-80d6-b1a1150f576f" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019e8a0d-3c0f-7bc1-a65d-2f4ef8aab922" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_019e8a0d-3c0f-7c1b-a9be-5cd4632acb4a" 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_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:to="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_019e8a0d-3c0f-7c1b-a9be-5cd4632acb4a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_019e8a0d-3c0f-7558-b14d-581f69228a77" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7cd3-903a-b382f0734e8f" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_019e8a0d-3c0f-7558-b14d-581f69228a77" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019e8a0d-3c0f-75ec-bcef-1b2e73560d04" 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_AssetsFairValueDisclosureAbstract_019e8a0d-3c0f-7558-b14d-581f69228a77" xlink:to="loc_us-gaap_DerivativeAssets_019e8a0d-3c0f-75ec-bcef-1b2e73560d04" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019e8a0d-3c0f-70f7-beb4-1f90f58a6aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019e8a0d-3c0f-7558-b14d-581f69228a77" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_019e8a0d-3c0f-70f7-beb4-1f90f58a6aaa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7cd3-903a-b382f0734e8f" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019e8a0d-3c0f-7d80-b276-f97644322d55" 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_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:to="loc_us-gaap_DerivativeLiabilities_019e8a0d-3c0f-7d80-b276-f97644322d55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_019e8a0d-3c0f-718e-a52f-761b9ea6ab0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_019e8a0d-3c0f-718e-a52f-761b9ea6ab0c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019e8a0d-3c0f-74a9-975a-f9243be9ad01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_019e8a0d-3c0f-74a9-975a-f9243be9ad01" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/FINANCIALINSTRUMENTSScheduleofFairValueMeasurementsDetails_1" xlink:type="simple" xlink:href="esi-20260630.xsd#FINANCIALINSTRUMENTSScheduleofFairValueMeasurementsDetails_1"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/FINANCIALINSTRUMENTSScheduleofFairValueMeasurementsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7cd3-903a-b382f0734e8f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7cd3-903a-b382f0734e8f" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019e8a0d-3c0f-74de-9d29-709dd4311830" 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_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019e8a0d-3c0f-74de-9d29-709dd4311830" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-74de-9d29-709dd4311830_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_019e8a0d-3c0f-74de-9d29-709dd4311830" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-74de-9d29-709dd4311830_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7f76-a359-3e4071c05dea" 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_019e8a0d-3c0f-74de-9d29-709dd4311830" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_019e8a0d-3c0f-780d-9ed3-c6d98504dfc6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:to="loc_us-gaap_ForeignExchangeContractMember_019e8a0d-3c0f-780d-9ed3-c6d98504dfc6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommoditiesInvestmentMember_019e8a0d-3c0f-790a-a22c-5a5814433473" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommoditiesInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:to="loc_us-gaap_CommoditiesInvestmentMember_019e8a0d-3c0f-790a-a22c-5a5814433473" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019e8a0d-3c0f-7489-a09d-169b4c4670d3" 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_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:to="loc_us-gaap_InterestRateSwapMember_019e8a0d-3c0f-7489-a09d-169b4c4670d3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_019e8a0d-3c0f-7119-853a-7473f1555269" 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_019e8a0d-3c0f-7f76-a359-3e4071c05dea" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_019e8a0d-3c0f-7119-853a-7473f1555269" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9" 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_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-78d5-9e79-d56923098f2b" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9_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_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e8a0d-3c0f-7071-80d6-b1a1150f576f" 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_019e8a0d-3c0f-7b66-9e22-498cf24cd3a9" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e8a0d-3c0f-7071-80d6-b1a1150f576f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019e8a0d-3c0f-78c6-a882-68dcba627f1f" 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_019e8a0d-3c0f-7071-80d6-b1a1150f576f" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019e8a0d-3c0f-78c6-a882-68dcba627f1f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019e8a0d-3c0f-7bc1-a65d-2f4ef8aab922" 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_019e8a0d-3c0f-7071-80d6-b1a1150f576f" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019e8a0d-3c0f-7bc1-a65d-2f4ef8aab922" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_019e8a0d-3c0f-7558-b14d-581f69228a77" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7cd3-903a-b382f0734e8f" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_019e8a0d-3c0f-7558-b14d-581f69228a77" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019e8a0d-3c0f-75ec-bcef-1b2e73560d04" 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_AssetsFairValueDisclosureAbstract_019e8a0d-3c0f-7558-b14d-581f69228a77" xlink:to="loc_us-gaap_DerivativeAssets_019e8a0d-3c0f-75ec-bcef-1b2e73560d04" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019e8a0d-3c0f-70f7-beb4-1f90f58a6aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019e8a0d-3c0f-7558-b14d-581f69228a77" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_019e8a0d-3c0f-70f7-beb4-1f90f58a6aaa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7cd3-903a-b382f0734e8f" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019e8a0d-3c0f-7d80-b276-f97644322d55" 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_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:to="loc_us-gaap_DerivativeLiabilities_019e8a0d-3c0f-7d80-b276-f97644322d55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_019e8a0d-3c0f-718e-a52f-761b9ea6ab0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_019e8a0d-3c0f-718e-a52f-761b9ea6ab0c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019e8a0d-3c0f-74a9-975a-f9243be9ad01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019e8a0d-3c0f-73de-9d49-fad5e9b9cbe7" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_019e8a0d-3c0f-74a9-975a-f9243be9ad01" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/FINANCIALINSTRUMENTSFairValueMeasurementsAdditionalInformationDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#FINANCIALINSTRUMENTSFairValueMeasurementsAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/FINANCIALINSTRUMENTSFairValueMeasurementsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7a9b-a27f-f2cec355091c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-7452-a9f2-521f41f9eaa3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7a9b-a27f-f2cec355091c" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-7452-a9f2-521f41f9eaa3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019e8a0d-3c0f-7086-a09f-dd16de9a7ca8" 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_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-7452-a9f2-521f41f9eaa3" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019e8a0d-3c0f-7086-a09f-dd16de9a7ca8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7086-a09f-dd16de9a7ca8_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_019e8a0d-3c0f-7086-a09f-dd16de9a7ca8" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7086-a09f-dd16de9a7ca8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7eb6-ab44-b28144f3ce8e" 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_019e8a0d-3c0f-7086-a09f-dd16de9a7ca8" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7eb6-ab44-b28144f3ce8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_EFCMember_019e8a0d-3c0f-72fa-9f9a-52f72fb42e6e" xlink:href="esi-20260630.xsd#esi_EFCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019e8a0d-3c0f-7eb6-ab44-b28144f3ce8e" xlink:to="loc_esi_EFCMember_019e8a0d-3c0f-72fa-9f9a-52f72fb42e6e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_019e8a0d-3c0f-7150-bb71-458999bdcf2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e8a0d-3c0f-7452-a9f2-521f41f9eaa3" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_019e8a0d-3c0f-7150-bb71-458999bdcf2b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019e8a0d-3c0f-7150-bb71-458999bdcf2b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019e8a0d-3c0f-7150-bb71-458999bdcf2b" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019e8a0d-3c0f-7150-bb71-458999bdcf2b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019e8a0d-3c0f-7940-a863-b709f156b6e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019e8a0d-3c0f-7150-bb71-458999bdcf2b" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019e8a0d-3c0f-7940-a863-b709f156b6e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019e8a0d-3c0f-7476-a7e0-4e737a271e63" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019e8a0d-3c0f-7940-a863-b709f156b6e7" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019e8a0d-3c0f-7476-a7e0-4e737a271e63" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019e8a0d-3c0f-796e-8baa-8f5d63d4612f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019e8a0d-3c0f-7476-a7e0-4e737a271e63" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019e8a0d-3c0f-796e-8baa-8f5d63d4612f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019e8a0d-3c0f-7884-8dd9-bc9dfc233d48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019e8a0d-3c0f-7476-a7e0-4e737a271e63" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019e8a0d-3c0f-7884-8dd9-bc9dfc233d48" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_BusinessCombinationContingentConsiderationCash_019ebac5-a9a4-7ab7-85c9-f0bdb67775bf" xlink:href="esi-20260630.xsd#esi_BusinessCombinationContingentConsiderationCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7a9b-a27f-f2cec355091c" xlink:to="loc_esi_BusinessCombinationContingentConsiderationCash_019ebac5-a9a4-7ab7-85c9-f0bdb67775bf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_BusinessCombinationContingentConsiderationShares_019e8a0d-3c0f-72f5-8797-5f44d563ba35" xlink:href="esi-20260630.xsd#esi_BusinessCombinationContingentConsiderationShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7a9b-a27f-f2cec355091c" xlink:to="loc_esi_BusinessCombinationContingentConsiderationShares_019e8a0d-3c0f-72f5-8797-5f44d563ba35" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_019e8a0d-3c0f-7059-b43a-c4bac0232cf9" 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_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e8a0d-3c0f-7a9b-a27f-f2cec355091c" xlink:to="loc_us-gaap_LongTermDebtFairValue_019e8a0d-3c0f-7059-b43a-c4bac0232cf9" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/EARNINGSPERSHAREScheduleofAntidilutiveSecuritiesExcludedFromComputationofEarningsPerShareDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#EARNINGSPERSHAREScheduleofAntidilutiveSecuritiesExcludedFromComputationofEarningsPerShareDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/EARNINGSPERSHAREScheduleofAntidilutiveSecuritiesExcludedFromComputationofEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019e8a0d-3c0f-7098-b50f-fadeba067870" 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_019e8a0d-3c0f-7790-8ba8-93772e54bd32" 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_019e8a0d-3c0f-7098-b50f-fadeba067870" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019e8a0d-3c0f-7790-8ba8-93772e54bd32" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019e8a0d-3c0f-7b2d-b50d-52bef30b48b2" 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_019e8a0d-3c0f-7790-8ba8-93772e54bd32" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019e8a0d-3c0f-7b2d-b50d-52bef30b48b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e8a0d-3c0f-7b2d-b50d-52bef30b48b2_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_019e8a0d-3c0f-7b2d-b50d-52bef30b48b2" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e8a0d-3c0f-7b2d-b50d-52bef30b48b2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e8a0d-3c0f-7f57-9a65-d7cb0b2a253e" 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_019e8a0d-3c0f-7b2d-b50d-52bef30b48b2" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e8a0d-3c0f-7f57-9a65-d7cb0b2a253e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ContingentConsiderationSharesMember_019e8a0d-3c0f-7008-aec8-436c135ef848" xlink:href="esi-20260630.xsd#esi_ContingentConsiderationSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e8a0d-3c0f-7f57-9a65-d7cb0b2a253e" xlink:to="loc_esi_ContingentConsiderationSharesMember_019e8a0d-3c0f-7008-aec8-436c135ef848" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019e8a0d-3c0f-74be-9a09-0fbf739fa49c" 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_019e8a0d-3c0f-7f57-9a65-d7cb0b2a253e" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019e8a0d-3c0f-74be-9a09-0fbf739fa49c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019e8a0d-3c0f-7aa5-be30-0b521b0cc2a7" 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_019e8a0d-3c0f-7098-b50f-fadeba067870" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019e8a0d-3c0f-7aa5-be30-0b521b0cc2a7" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#RELATEDPARTYTRANSACTIONSDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_019e8a0d-3c10-7a2b-a5e2-58213fa30e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e8a0d-3c10-72c5-8bab-f92e5b1d9e1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e8a0d-3c10-7a2b-a5e2-58213fa30e9f" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e8a0d-3c10-72c5-8bab-f92e5b1d9e1b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_019e8a0d-3c10-7bf0-98ef-3115e1ccf2fb" 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_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e8a0d-3c10-72c5-8bab-f92e5b1d9e1b" xlink:to="loc_srt_CounterpartyNameAxis_019e8a0d-3c10-7bf0-98ef-3115e1ccf2fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e8a0d-3c10-7bf0-98ef-3115e1ccf2fb_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_019e8a0d-3c10-7bf0-98ef-3115e1ccf2fb" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e8a0d-3c10-7bf0-98ef-3115e1ccf2fb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e8a0d-3c10-7174-a256-fd2dce99fbe5" 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_019e8a0d-3c10-7bf0-98ef-3115e1ccf2fb" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e8a0d-3c10-7174-a256-fd2dce99fbe5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_MariposaCapitalMember_019e8a0d-3c10-7b55-b8bb-64c0dfb9ac57" xlink:href="esi-20260630.xsd#esi_MariposaCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e8a0d-3c10-7174-a256-fd2dce99fbe5" xlink:to="loc_esi_MariposaCapitalMember_019e8a0d-3c10-7b55-b8bb-64c0dfb9ac57" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_019e8a0d-3c10-7818-b583-639aa79404c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e8a0d-3c10-72c5-8bab-f92e5b1d9e1b" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_019e8a0d-3c10-7818-b583-639aa79404c8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019e8a0d-3c10-7818-b583-639aa79404c8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019e8a0d-3c10-7818-b583-639aa79404c8" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019e8a0d-3c10-7818-b583-639aa79404c8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019e8a0d-3c10-7723-a212-525c09993312" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019e8a0d-3c10-7818-b583-639aa79404c8" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019e8a0d-3c10-7723-a212-525c09993312" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_AdvisoryServicesAgreementMember_019e8a0d-3c10-7738-911c-41d9f33b3c50" xlink:href="esi-20260630.xsd#esi_AdvisoryServicesAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e8a0d-3c10-7723-a212-525c09993312" xlink:to="loc_esi_AdvisoryServicesAgreementMember_019e8a0d-3c10-7738-911c-41d9f33b3c50" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_019e8a0d-3c10-7630-96cc-0f7a08135834" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e8a0d-3c10-7a2b-a5e2-58213fa30e9f" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_019e8a0d-3c10-7630-96cc-0f7a08135834" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_RelatedPartyTransactionAgreementTermOfContract_019f02fe-9664-7f9a-9593-e3a27d4ac92f" xlink:href="esi-20260630.xsd#esi_RelatedPartyTransactionAgreementTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e8a0d-3c10-7a2b-a5e2-58213fa30e9f" xlink:to="loc_esi_RelatedPartyTransactionAgreementTermOfContract_019f02fe-9664-7f9a-9593-e3a27d4ac92f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_RelatedPartyAutomaticRenewalPeriod_019e8a0d-3c10-77c4-9e2e-5c35c1f6402f" xlink:href="esi-20260630.xsd#esi_RelatedPartyAutomaticRenewalPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e8a0d-3c10-7a2b-a5e2-58213fa30e9f" xlink:to="loc_esi_RelatedPartyAutomaticRenewalPeriod_019e8a0d-3c10-77c4-9e2e-5c35c1f6402f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_RelatedPartyNoticeOfNonRenewalToAgreement_019e8a0d-3c10-72d3-9108-066879b0985e" xlink:href="esi-20260630.xsd#esi_RelatedPartyNoticeOfNonRenewalToAgreement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e8a0d-3c10-7a2b-a5e2-58213fa30e9f" xlink:to="loc_esi_RelatedPartyNoticeOfNonRenewalToAgreement_019e8a0d-3c10-72d3-9108-066879b0985e" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/SEGMENTINFORMATIONFinancialInformationbyReportableSegmentDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#SEGMENTINFORMATIONFinancialInformationbyReportableSegmentDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/SEGMENTINFORMATIONFinancialInformationbyReportableSegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019e8a0d-3c10-767d-b4f4-06ae60bf31d3" 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_019e8a0d-3c10-7b6b-80ba-7a98b0794d00" 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_019e8a0d-3c10-767d-b4f4-06ae60bf31d3" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019e8a0d-3c10-7b6b-80ba-7a98b0794d00" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019e8a0d-3c10-7711-a4e2-d29934ba77c8" 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_019e8a0d-3c10-7b6b-80ba-7a98b0794d00" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019e8a0d-3c10-7711-a4e2-d29934ba77c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e8a0d-3c10-7711-a4e2-d29934ba77c8_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_019e8a0d-3c10-7711-a4e2-d29934ba77c8" xlink:to="loc_us-gaap_SegmentDomain_019e8a0d-3c10-7711-a4e2-d29934ba77c8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e8a0d-3c10-779a-af01-a206e8d57cdb" 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_019e8a0d-3c10-7711-a4e2-d29934ba77c8" xlink:to="loc_us-gaap_SegmentDomain_019e8a0d-3c10-779a-af01-a206e8d57cdb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ElectronicsSegmentMember_019e8a0d-3c10-7a43-9753-12cf6b3a943c" xlink:href="esi-20260630.xsd#esi_ElectronicsSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e8a0d-3c10-779a-af01-a206e8d57cdb" xlink:to="loc_esi_ElectronicsSegmentMember_019e8a0d-3c10-7a43-9753-12cf6b3a943c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_SpecialtiesSegmentMember_019e8a0d-3c10-7f26-864f-50a24d8df160" xlink:href="esi-20260630.xsd#esi_SpecialtiesSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e8a0d-3c10-779a-af01-a206e8d57cdb" xlink:to="loc_esi_SpecialtiesSegmentMember_019e8a0d-3c10-7f26-864f-50a24d8df160" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019e8a0d-3c10-7a5c-bd03-3f5a52d5dbbe" 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_019e8a0d-3c10-7b6b-80ba-7a98b0794d00" xlink:to="loc_srt_ProductOrServiceAxis_019e8a0d-3c10-7a5c-bd03-3f5a52d5dbbe" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7a5c-bd03-3f5a52d5dbbe_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_019e8a0d-3c10-7a5c-bd03-3f5a52d5dbbe" xlink:to="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7a5c-bd03-3f5a52d5dbbe_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" 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_019e8a0d-3c10-7a5c-bd03-3f5a52d5dbbe" xlink:to="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_AssemblySolutionsMember_019e8a0d-3c10-7e81-b529-a25d21bb8923" xlink:href="esi-20260630.xsd#esi_AssemblySolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:to="loc_esi_AssemblySolutionsMember_019e8a0d-3c10-7e81-b529-a25d21bb8923" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ElectronicsSolutionsMember_019e8a0d-3c10-71e4-ad4d-a17a2fbe55cb" xlink:href="esi-20260630.xsd#esi_ElectronicsSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:to="loc_esi_ElectronicsSolutionsMember_019e8a0d-3c10-71e4-ad4d-a17a2fbe55cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_MicromaxMember_019e8a0d-3c10-7c84-94a8-0bcc91ed9788" xlink:href="esi-20260630.xsd#esi_MicromaxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:to="loc_esi_MicromaxMember_019e8a0d-3c10-7c84-94a8-0bcc91ed9788" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_SemiConductorsMember_019e8a0d-3c10-7c89-b71f-63735914935c" xlink:href="esi-20260630.xsd#esi_SemiConductorsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:to="loc_esi_SemiConductorsMember_019e8a0d-3c10-7c89-b71f-63735914935c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_IndustrialSolutionsMember_019e8a0d-3c10-76e8-92c4-3d8a7793108d" xlink:href="esi-20260630.xsd#esi_IndustrialSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:to="loc_esi_IndustrialSolutionsMember_019e8a0d-3c10-76e8-92c4-3d8a7793108d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_EFCMember_019e8a0d-3c10-7cbf-ae2e-d7f0394f4b55" xlink:href="esi-20260630.xsd#esi_EFCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:to="loc_esi_EFCMember_019e8a0d-3c10-7cbf-ae2e-d7f0394f4b55" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_GraphicsSolutionsMember_019e8a0d-3c10-766b-aea0-6b3f687728e5" xlink:href="esi-20260630.xsd#esi_GraphicsSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:to="loc_esi_GraphicsSolutionsMember_019e8a0d-3c10-766b-aea0-6b3f687728e5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_EnergySolutionsMember_019e8a0d-3c10-7aa6-b433-400901b06a88" xlink:href="esi-20260630.xsd#esi_EnergySolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e8a0d-3c10-7b35-9a75-f3b3a8a22539" xlink:to="loc_esi_EnergySolutionsMember_019e8a0d-3c10-7aa6-b433-400901b06a88" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_NetSalesAbstract_019e8a0d-3c10-7d07-b4b8-77d24ede29cb" xlink:href="esi-20260630.xsd#esi_NetSalesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e8a0d-3c10-767d-b4f4-06ae60bf31d3" xlink:to="loc_esi_NetSalesAbstract_019e8a0d-3c10-7d07-b4b8-77d24ede29cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e8a0d-3c10-7ad3-9d4d-093366f77b66" 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_esi_NetSalesAbstract_019e8a0d-3c10-7d07-b4b8-77d24ede29cb" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e8a0d-3c10-7ad3-9d4d-093366f77b66" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/SEGMENTINFORMATIONReconciliationofAdjustedEBITDAtoNetIncomeDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#SEGMENTINFORMATIONReconciliationofAdjustedEBITDAtoNetIncomeDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/SEGMENTINFORMATIONReconciliationofAdjustedEBITDAtoNetIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019e8a0d-3c10-7d54-b92d-67d787cc9421" 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_019e8a0d-3c10-7001-acdb-d5528cb24e54" 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_019e8a0d-3c10-7d54-b92d-67d787cc9421" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019e8a0d-3c10-7001-acdb-d5528cb24e54" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019e8a0d-3c10-7806-b785-42c138c3881c" 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_019e8a0d-3c10-7001-acdb-d5528cb24e54" xlink:to="loc_srt_ConsolidationItemsAxis_019e8a0d-3c10-7806-b785-42c138c3881c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019e8a0d-3c10-7806-b785-42c138c3881c_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_019e8a0d-3c10-7806-b785-42c138c3881c" xlink:to="loc_srt_ConsolidationItemsDomain_019e8a0d-3c10-7806-b785-42c138c3881c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019e8a0d-3c10-703e-a5b5-749dd6a67b19" 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_019e8a0d-3c10-7806-b785-42c138c3881c" xlink:to="loc_srt_ConsolidationItemsDomain_019e8a0d-3c10-703e-a5b5-749dd6a67b19" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019e8a0d-3c10-77be-9803-78644f4653a1" 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_019e8a0d-3c10-703e-a5b5-749dd6a67b19" xlink:to="loc_us-gaap_OperatingSegmentsMember_019e8a0d-3c10-77be-9803-78644f4653a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e8a0d-3c10-7892-865b-16c1cacdfe56" 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_SegmentReportingInformationLineItems_019e8a0d-3c10-7d54-b92d-67d787cc9421" xlink:to="loc_us-gaap_ProfitLoss_019e8a0d-3c10-7892-865b-16c1cacdfe56" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_019e8a0d-3c10-73bf-9bba-94673e46f4f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e8a0d-3c10-7d54-b92d-67d787cc9421" xlink:to="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_019e8a0d-3c10-73bf-9bba-94673e46f4f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e8a0d-3c10-7a2c-ac93-870d0bb288db" 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_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_019e8a0d-3c10-73bf-9bba-94673e46f4f6" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e8a0d-3c10-7a2c-ac93-870d0bb288db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_019e8a0d-3c10-74f4-8c6b-af7ef3ef02b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_019e8a0d-3c10-73bf-9bba-94673e46f4f6" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_019e8a0d-3c10-74f4-8c6b-af7ef3ef02b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019e8a0d-3c10-791a-8b2d-1e78292471a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Depreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_019e8a0d-3c10-73bf-9bba-94673e46f4f6" xlink:to="loc_us-gaap_Depreciation_019e8a0d-3c10-791a-8b2d-1e78292471a8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentForAmortization_019e8a0d-3c10-7e78-89bc-3b07d68cbc80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentForAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_019e8a0d-3c10-73bf-9bba-94673e46f4f6" xlink:to="loc_us-gaap_AdjustmentForAmortization_019e8a0d-3c10-7e78-89bc-3b07d68cbc80" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_OperatingIncomeLossEarningsBeforeInterestTaxesDepreciationAndAmortization_019e8a0d-3c10-73c4-bf7d-e78796d2fa83" xlink:href="esi-20260630.xsd#esi_OperatingIncomeLossEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e8a0d-3c10-7d54-b92d-67d787cc9421" xlink:to="loc_esi_OperatingIncomeLossEarningsBeforeInterestTaxesDepreciationAndAmortization_019e8a0d-3c10-73c4-bf7d-e78796d2fa83" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:href="esi-20260630.xsd#esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e8a0d-3c10-7d54-b92d-67d787cc9421" xlink:to="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_InventoryStepUpCost_019e8a0d-3c10-7200-a9c8-c5788ff8a8ef" xlink:href="esi-20260630.xsd#esi_InventoryStepUpCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_esi_InventoryStepUpCost_019e8a0d-3c10-7200-a9c8-c5788ff8a8ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019e8a0d-3c10-7b2d-8fc0-0ebca62fd0fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_us-gaap_RestructuringCharges_019e8a0d-3c10-7b2d-8fc0-0ebca62fd0fa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_019e8a0d-3c10-78b7-82bf-97fa55ce50bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_019e8a0d-3c10-78b7-82bf-97fa55ce50bd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealized_019e8a0d-3c10-7629-bc0a-7ecce994cd45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyTransactionGainLossUnrealized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealized_019e8a0d-3c10-7629-bc0a-7ecce994cd45" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_019e8a0d-3c10-7502-8d50-d7bce719071e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_019e8a0d-3c10-7502-8d50-d7bce719071e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts_019e8a0d-3c10-7561-99b8-b16e7c8b9929" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts_019e8a0d-3c10-7561-99b8-b16e7c8b9929" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts_019e8a0d-3c10-71cd-b9bb-13edb0cc6d3e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts_019e8a0d-3c10-71cd-b9bb-13edb0cc6d3e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1_019e8a0d-3c10-7c7c-93e4-752de854836e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1_019e8a0d-3c10-7c7c-93e4-752de854836e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019e8a0d-3c10-7c44-9b12-72d8c0caa23a" 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_esi_AdjustmentstoReconcileOperatingIncomeLosstoAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationAbstract_019e8a0d-3c10-7bdf-b9d3-dfe90bc07bf3" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019e8a0d-3c10-7c44-9b12-72d8c0caa23a" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_OperatingIncomeLossAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_019e8a0d-3c10-7938-aa21-e835d9a3d6c4" xlink:href="esi-20260630.xsd#esi_OperatingIncomeLossAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e8a0d-3c10-7d54-b92d-67d787cc9421" xlink:to="loc_esi_OperatingIncomeLossAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_019e8a0d-3c10-7938-aa21-e835d9a3d6c4" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.elementsolutionsinc.com/role/SEGMENTINFORMATIONReportableSegmentsResultsofOperationsDetails" xlink:type="simple" xlink:href="esi-20260630.xsd#SEGMENTINFORMATIONReportableSegmentsResultsofOperationsDetails"/>
  <link:definitionLink xlink:role="http://www.elementsolutionsinc.com/role/SEGMENTINFORMATIONReportableSegmentsResultsofOperationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019e8a0d-3c10-7c72-beaa-79c42736ed24" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019e8a0d-3c10-7c72-beaa-79c42736ed24" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019e8a0d-3c10-7f9b-a886-69cbe333f544" 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_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019e8a0d-3c10-7c72-beaa-79c42736ed24" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019e8a0d-3c10-7f9b-a886-69cbe333f544" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e8a0d-3c10-7f9b-a886-69cbe333f544_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_019e8a0d-3c10-7f9b-a886-69cbe333f544" xlink:to="loc_us-gaap_SegmentDomain_019e8a0d-3c10-7f9b-a886-69cbe333f544_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e8a0d-3c10-7936-befa-9e1bc163b5e8" 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_019e8a0d-3c10-7f9b-a886-69cbe333f544" xlink:to="loc_us-gaap_SegmentDomain_019e8a0d-3c10-7936-befa-9e1bc163b5e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_ElectronicsSegmentMember_019e8a0d-3c10-77c2-a62c-333944dc2283" xlink:href="esi-20260630.xsd#esi_ElectronicsSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e8a0d-3c10-7936-befa-9e1bc163b5e8" xlink:to="loc_esi_ElectronicsSegmentMember_019e8a0d-3c10-77c2-a62c-333944dc2283" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_SpecialtiesSegmentMember_019e8a0d-3c10-72fc-981e-20c1503444f0" xlink:href="esi-20260630.xsd#esi_SpecialtiesSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e8a0d-3c10-7936-befa-9e1bc163b5e8" xlink:to="loc_esi_SpecialtiesSegmentMember_019e8a0d-3c10-72fc-981e-20c1503444f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019e8a0d-3c10-7555-b038-aa5faa2f9065" 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_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019e8a0d-3c10-7c72-beaa-79c42736ed24" xlink:to="loc_srt_ConsolidationItemsAxis_019e8a0d-3c10-7555-b038-aa5faa2f9065" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019e8a0d-3c10-7555-b038-aa5faa2f9065_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_019e8a0d-3c10-7555-b038-aa5faa2f9065" xlink:to="loc_srt_ConsolidationItemsDomain_019e8a0d-3c10-7555-b038-aa5faa2f9065_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019e8a0d-3c10-730e-aae0-104d983ff1a8" 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_019e8a0d-3c10-7555-b038-aa5faa2f9065" xlink:to="loc_srt_ConsolidationItemsDomain_019e8a0d-3c10-730e-aae0-104d983ff1a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019e8a0d-3c10-7702-8219-f67bda87b196" 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_019e8a0d-3c10-730e-aae0-104d983ff1a8" xlink:to="loc_us-gaap_OperatingSegmentsMember_019e8a0d-3c10-7702-8219-f67bda87b196" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e8a0d-3c10-77a0-8049-a0cad6b13d51" 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_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e8a0d-3c10-77a0-8049-a0cad6b13d51" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019e8a0d-3c10-7d00-b684-b955086cf54d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019e8a0d-3c10-7d00-b684-b955086cf54d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e8a0d-3c10-7976-b0cd-9faebaa8075e" 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_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e8a0d-3c10-7976-b0cd-9faebaa8075e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019e8a0d-3c10-7d28-9366-d0a57038049f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019e8a0d-3c10-7d28-9366-d0a57038049f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_019e8a0d-3c10-7864-89fc-20bdb1117d8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_019e8a0d-3c10-7864-89fc-20bdb1117d8e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019e8a0d-3c10-7499-bba6-480654ff143f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Depreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_us-gaap_Depreciation_019e8a0d-3c10-7499-bba6-480654ff143f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_esi_OperatingIncomeLossAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_019e8a0d-3c10-7d4d-a2f8-892441ada166" xlink:href="esi-20260630.xsd#esi_OperatingIncomeLossAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_esi_OperatingIncomeLossAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_019e8a0d-3c10-7d4d-a2f8-892441ada166" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_019e8a0d-3c10-772b-b52e-7daaff272799" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019e8a0d-3c10-7955-989a-77509d4ea7dd" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_019e8a0d-3c10-772b-b52e-7daaff272799" xlink:type="arc" order="7"/>
  </link:definitionLink>
</link:linkbase>
