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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e2ce7-99a2-7b43-be97-ff28b69c9ccf,g:9504a79a-c3f0-410f-ad8b-9f9bccaeabfa-->
<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.corescientific.com/role/Cover" xlink:type="simple" xlink:href="core-20260630.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019e2ce7-9bf4-70fe-a9e0-10f78376338c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_DocumentInformationTable_019e2ce7-9bf4-70fe-a9e0-10f78376338c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019e2ce7-9bf4-7851-addb-f46ffde70a7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019e2ce7-9bf4-70fe-a9e0-10f78376338c" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019e2ce7-9bf4-7851-addb-f46ffde70a7c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019e2ce7-9bf4-7851-addb-f46ffde70a7c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019e2ce7-9bf4-7851-addb-f46ffde70a7c" xlink:to="loc_us-gaap_ClassOfStockDomain_019e2ce7-9bf4-7851-addb-f46ffde70a7c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019e2ce7-9bf4-73db-8909-66545ffa0f09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019e2ce7-9bf4-7851-addb-f46ffde70a7c" xlink:to="loc_us-gaap_ClassOfStockDomain_019e2ce7-9bf4-73db-8909-66545ffa0f09" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019e2ce7-9bf4-7da5-b175-3e229542d958" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019e2ce7-9bf4-73db-8909-66545ffa0f09" xlink:to="loc_us-gaap_CommonClassAMember_019e2ce7-9bf4-7da5-b175-3e229542d958" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantsExercisePriceOf6.81PerShareMember_019e2ce7-9bf4-70f1-b927-071243835206" xlink:href="core-20260630.xsd#core_WarrantsExercisePriceOf6.81PerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019e2ce7-9bf4-73db-8909-66545ffa0f09" xlink:to="loc_core_WarrantsExercisePriceOf6.81PerShareMember_019e2ce7-9bf4-70f1-b927-071243835206" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantsExercisePriceOf0.01PerShareMember_019e2ce7-9bf4-7817-9a4a-b4bb9639e63c" xlink:href="core-20260630.xsd#core_WarrantsExercisePriceOf0.01PerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019e2ce7-9bf4-73db-8909-66545ffa0f09" xlink:to="loc_core_WarrantsExercisePriceOf0.01PerShareMember_019e2ce7-9bf4-7817-9a4a-b4bb9639e63c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e2ce7-9bf4-7bd1-9344-32510dff7875" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_DocumentType_019e2ce7-9bf4-7bd1-9344-32510dff7875" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_019e2ce7-9bf4-7996-afbc-55ba0d804bc9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_DocumentQuarterlyReport_019e2ce7-9bf4-7996-afbc-55ba0d804bc9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e2ce7-9bf4-7896-96e0-696351edb354" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_DocumentPeriodEndDate_019e2ce7-9bf4-7896-96e0-696351edb354" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_019e2ce7-9bf4-7c66-80b1-aa743e946fbd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_DocumentTransitionReport_019e2ce7-9bf4-7c66-80b1-aa743e946fbd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e2ce7-9bf4-74d1-83e7-5db2b8f523ea" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityFileNumber_019e2ce7-9bf4-74d1-83e7-5db2b8f523ea" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e2ce7-9bf4-733b-8aa3-70a8169d3c40" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityRegistrantName_019e2ce7-9bf4-733b-8aa3-70a8169d3c40" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e2ce7-9bf4-7073-b6b1-c5d5d52a4865" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e2ce7-9bf4-7073-b6b1-c5d5d52a4865" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e2ce7-9bf4-7faf-8706-5dea0aab9227" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e2ce7-9bf4-7faf-8706-5dea0aab9227" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e2ce7-9bf4-7522-94b5-a96346f4473b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityAddressAddressLine1_019e2ce7-9bf4-7522-94b5-a96346f4473b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019e2ce7-9bf4-7297-875c-00771c455ff8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityAddressAddressLine2_019e2ce7-9bf4-7297-875c-00771c455ff8" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e2ce7-9bf4-716d-a648-bf60da5b7705" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityAddressCityOrTown_019e2ce7-9bf4-716d-a648-bf60da5b7705" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e2ce7-9bf4-750d-9e3d-1d3921a681d5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityAddressStateOrProvince_019e2ce7-9bf4-750d-9e3d-1d3921a681d5" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e2ce7-9bf4-7322-967b-27559ec1ade9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityAddressPostalZipCode_019e2ce7-9bf4-7322-967b-27559ec1ade9" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e2ce7-9bf4-7066-81bb-cbb0e96c6f2f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_CityAreaCode_019e2ce7-9bf4-7066-81bb-cbb0e96c6f2f" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e2ce7-9bf4-7992-a793-ca8483ea3054" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_LocalPhoneNumber_019e2ce7-9bf4-7992-a793-ca8483ea3054" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e2ce7-9bf4-7663-ac93-526b67a79a53" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_Security12bTitle_019e2ce7-9bf4-7663-ac93-526b67a79a53" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e2ce7-9bf4-7a44-87eb-caa1fbc4f85e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_TradingSymbol_019e2ce7-9bf4-7a44-87eb-caa1fbc4f85e" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e2ce7-9bf4-746e-b9c0-f42918c9340e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_SecurityExchangeName_019e2ce7-9bf4-746e-b9c0-f42918c9340e" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_019e2ce7-9bf4-75bb-b97f-200a82f9d884" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityCurrentReportingStatus_019e2ce7-9bf4-75bb-b97f-200a82f9d884" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_019e2ce7-9bf4-7913-a724-7f4c11e0d5e5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityInteractiveDataCurrent_019e2ce7-9bf4-7913-a724-7f4c11e0d5e5" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_019e2ce7-9bf4-7b93-8a02-09795de3bb92" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityFilerCategory_019e2ce7-9bf4-7b93-8a02-09795de3bb92" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e2ce7-9bf4-71d4-9a34-b2085251cab7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e2ce7-9bf4-71d4-9a34-b2085251cab7" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_019e2ce7-9bf4-718a-9625-d58ad8a11a2d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntitySmallBusiness_019e2ce7-9bf4-718a-9625-d58ad8a11a2d" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_019e2ce7-9bf4-7ad7-8031-3ed957d8521d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityShellCompany_019e2ce7-9bf4-7ad7-8031-3ed957d8521d" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityBankruptcyProceedingsReportingCurrent_019e2ce7-9bf4-7a38-a37b-126638ee18ea" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityBankruptcyProceedingsReportingCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityBankruptcyProceedingsReportingCurrent_019e2ce7-9bf4-7a38-a37b-126638ee18ea" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_019e2ce7-9bf4-7455-b8ad-3de5ebf1cdcd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_019e2ce7-9bf4-7455-b8ad-3de5ebf1cdcd" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e2ce7-9bf4-74ba-86c1-7c210a0e7038" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_EntityCentralIndexKey_019e2ce7-9bf4-74ba-86c1-7c210a0e7038" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019e2ce7-9bf4-7199-b07c-875fc51e9c95" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_CurrentFiscalYearEndDate_019e2ce7-9bf4-7199-b07c-875fc51e9c95" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_019e2ce7-9bf4-7ef0-8976-305d677dd6e0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_DocumentFiscalYearFocus_019e2ce7-9bf4-7ef0-8976-305d677dd6e0" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_019e2ce7-9bf4-701f-9f39-b3ce5821bc40" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_DocumentFiscalPeriodFocus_019e2ce7-9bf4-701f-9f39-b3ce5821bc40" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e2ce7-9bf4-7fd9-9f0f-c20be5f7b3c6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e2ce7-9bf4-73c8-98d2-f818be8cabf1" xlink:to="loc_dei_AmendmentFlag_019e2ce7-9bf4-7fd9-9f0f-c20be5f7b3c6" xlink:type="arc" order="30"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/CondensedConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="core-20260630.xsd#CondensedConsolidatedStatementsofOperations"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/CondensedConsolidatedStatementsofOperations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" 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_019e2ce7-9bf4-7560-a3ab-b05dbe018ad5" 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_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_StatementTable_019e2ce7-9bf4-7560-a3ab-b05dbe018ad5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019e2ce7-9bf4-74a6-aca8-706b84253a60" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019e2ce7-9bf4-7560-a3ab-b05dbe018ad5" xlink:to="loc_srt_ProductOrServiceAxis_019e2ce7-9bf4-74a6-aca8-706b84253a60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-74a6-aca8-706b84253a60_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_019e2ce7-9bf4-74a6-aca8-706b84253a60" xlink:to="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-74a6-aca8-706b84253a60_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7399-86ae-da375049305c" 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_019e2ce7-9bf4-74a6-aca8-706b84253a60" xlink:to="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7399-86ae-da375049305c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ColocationServiceMember_019e2ce7-9bf4-773f-8ec3-3ed5be6a77c4" xlink:href="core-20260630.xsd#core_ColocationServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7399-86ae-da375049305c" xlink:to="loc_core_ColocationServiceMember_019e2ce7-9bf4-773f-8ec3-3ed5be6a77c4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetSelfMiningServiceMember_019e2ce7-9bf4-7124-a9fe-b9d8ea32e018" xlink:href="core-20260630.xsd#core_DigitalAssetSelfMiningServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7399-86ae-da375049305c" xlink:to="loc_core_DigitalAssetSelfMiningServiceMember_019e2ce7-9bf4-7124-a9fe-b9d8ea32e018" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetHostedMiningServiceMember_019e2ce7-9bf4-719f-91e2-644362def68b" xlink:href="core-20260630.xsd#core_DigitalAssetHostedMiningServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7399-86ae-da375049305c" xlink:to="loc_core_DigitalAssetHostedMiningServiceMember_019e2ce7-9bf4-719f-91e2-644362def68b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_019e2ce7-9bf4-7b2e-a99c-b797d0b6e27a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_RevenuesAbstract_019e2ce7-9bf4-7b2e-a99c-b797d0b6e27a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e2ce7-9bf4-75e1-98f3-8925fec651bc" 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_RevenuesAbstract_019e2ce7-9bf4-7b2e-a99c-b797d0b6e27a" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e2ce7-9bf4-75e1-98f3-8925fec651bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_RevenueDigitalAssetSelfMiningIncome_019e2ce7-9bf4-74ec-8e28-b7ad1fcb436f" xlink:href="core-20260630.xsd#core_RevenueDigitalAssetSelfMiningIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019e2ce7-9bf4-7b2e-a99c-b797d0b6e27a" xlink:to="loc_core_RevenueDigitalAssetSelfMiningIncome_019e2ce7-9bf4-74ec-8e28-b7ad1fcb436f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019e2ce7-9bf4-770a-9f4f-0ea17656f1c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019e2ce7-9bf4-7b2e-a99c-b797d0b6e27a" xlink:to="loc_us-gaap_Revenues_019e2ce7-9bf4-770a-9f4f-0ea17656f1c7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019e2ce7-9bf4-7531-bbea-c9f8e9c94f53" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_CostOfRevenue_019e2ce7-9bf4-7531-bbea-c9f8e9c94f53" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019e2ce7-9bf4-70e6-948c-104fb8cdb14d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_GrossProfit_019e2ce7-9bf4-70e6-948c-104fb8cdb14d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetUnrealizedGainLossOperating_019e2ce7-9bf4-778c-8b14-647cb73404f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CryptoAssetUnrealizedGainLossOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_CryptoAssetUnrealizedGainLossOperating_019e2ce7-9bf4-778c-8b14-647cb73404f7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019e2ce7-9bf4-732f-a970-fe8b52c81735" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019e2ce7-9bf4-732f-a970-fe8b52c81735" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown_019f5be0-1a91-76ba-8570-644f23ef12f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown_019f5be0-1a91-76ba-8570-644f23ef12f9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_019f5bfa-c685-73da-ba69-2ec3bb48bf20" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_019f5bfa-c685-73da-ba69-2ec3bb48bf20" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnContractTermination_019f4752-2f5e-7b00-a361-6bf2d046aa65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnContractTermination"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_GainLossOnContractTermination_019f4752-2f5e-7b00-a361-6bf2d046aa65" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ColocationOrganizationalAndSiteStartupCosts_019e2ce7-9bf4-725e-9551-4f5d1349af1e" xlink:href="core-20260630.xsd#core_ColocationOrganizationalAndSiteStartupCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_core_ColocationOrganizationalAndSiteStartupCosts_019e2ce7-9bf4-725e-9551-4f5d1349af1e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e2ce7-9bf4-74bf-aeaa-ce63fbc68764" 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_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e2ce7-9bf4-74bf-aeaa-ce63fbc68764" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e2ce7-9bf4-7cb1-a49c-9d6c1ff2b399" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_OperatingIncomeLoss_019e2ce7-9bf4-7cb1-a49c-9d6c1ff2b399" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019e2ce7-9bf4-7829-8545-c587d550163d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019e2ce7-9bf4-7829-8545-c587d550163d" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e4b3a-2b81-7cbd-a61b-84f2eae66283" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019e2ce7-9bf4-7829-8545-c587d550163d" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e4b3a-2b81-7cbd-a61b-84f2eae66283" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019e2ce7-9bf4-71d1-ad5c-a40bf2373f73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019e2ce7-9bf4-7829-8545-c587d550163d" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019e2ce7-9bf4-71d1-ad5c-a40bf2373f73" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_FairValueAdjustmentOfWarrantsAndContingentValueRights_019e2ce7-9bf4-7848-b22b-bbbbe4c4472d" xlink:href="core-20260630.xsd#core_FairValueAdjustmentOfWarrantsAndContingentValueRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019e2ce7-9bf4-7829-8545-c587d550163d" xlink:to="loc_core_FairValueAdjustmentOfWarrantsAndContingentValueRights_019e2ce7-9bf4-7848-b22b-bbbbe4c4472d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019e2ce7-9bf4-7ae4-9a9a-afbf0d445130" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019e2ce7-9bf4-7829-8545-c587d550163d" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019e2ce7-9bf4-7ae4-9a9a-afbf0d445130" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_019e2ce7-9bf4-7b50-81a9-c85e12825bab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019e2ce7-9bf4-7829-8545-c587d550163d" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_019e2ce7-9bf4-7b50-81a9-c85e12825bab" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2ce7-9bf4-72c3-b0ff-14ba2102a358" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2ce7-9bf4-72c3-b0ff-14ba2102a358" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e2ce7-9bf4-795c-b76f-aebb8cb01b1f" 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_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e2ce7-9bf4-795c-b76f-aebb8cb01b1f" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2ce7-9bf4-702c-a46e-3211aecc4b65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_NetIncomeLoss_019e2ce7-9bf4-702c-a46e-3211aecc4b65" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019e2ce7-9bf4-7d71-9637-036f0ad04b35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_EarningsPerShareBasic_019e2ce7-9bf4-7d71-9637-036f0ad04b35" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019e2ce7-9bf4-78e3-b5e1-266559387a96" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019e2ce7-9bf4-78e3-b5e1-266559387a96" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2ce7-9bf4-7c5c-a874-ae8fd8c83790" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2ce7-9bf4-7c5c-a874-ae8fd8c83790" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2ce7-9bf4-72e5-9169-de7b0e970422" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7405-be8b-73214a700525" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2ce7-9bf4-72e5-9169-de7b0e970422" xlink:type="arc" order="18"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/CondensedConsolidatedStatementsofChangesinStockholdersDeficit" xlink:type="simple" xlink:href="core-20260630.xsd#CondensedConsolidatedStatementsofChangesinStockholdersDeficit"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/CondensedConsolidatedStatementsofChangesinStockholdersDeficit" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019e2ce7-9bf4-7b05-a4d6-38c28e219728" 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_019e2ce7-9bf4-74b0-b6fa-942075238397" 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_019e2ce7-9bf4-7b05-a4d6-38c28e219728" xlink:to="loc_us-gaap_StatementTable_019e2ce7-9bf4-74b0-b6fa-942075238397" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019e2ce7-9bf4-7461-ba87-a18aac5bda63" 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_019e2ce7-9bf4-74b0-b6fa-942075238397" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019e2ce7-9bf4-7461-ba87-a18aac5bda63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-7461-ba87-a18aac5bda63_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_019e2ce7-9bf4-7461-ba87-a18aac5bda63" xlink:to="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-7461-ba87-a18aac5bda63_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-796a-ba43-af460ebf3060" 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_019e2ce7-9bf4-7461-ba87-a18aac5bda63" xlink:to="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-796a-ba43-af460ebf3060" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019e2ce7-9bf4-7530-b7ec-285297a0f626" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-796a-ba43-af460ebf3060" xlink:to="loc_us-gaap_CommonStockMember_019e2ce7-9bf4-7530-b7ec-285297a0f626" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019e2ce7-9bf4-7d7c-b495-d5f43e2d09c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-796a-ba43-af460ebf3060" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019e2ce7-9bf4-7d7c-b495-d5f43e2d09c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019e2ce7-9bf4-73c3-bbd5-66571b5fb41a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-796a-ba43-af460ebf3060" xlink:to="loc_us-gaap_RetainedEarningsMember_019e2ce7-9bf4-73c3-bbd5-66571b5fb41a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" 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_019e2ce7-9bf4-7b05-a4d6-38c28e219728" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019e2ce7-9bf4-7a94-94be-8fce086ff3a0" 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_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019e2ce7-9bf4-7a94-94be-8fce086ff3a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e2ce7-9bf4-7656-a367-5e86b164d9e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_StockholdersEquity_019e2ce7-9bf4-7656-a367-5e86b164d9e4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2ce7-9bf4-7b3c-aa71-c8567e9b611c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_NetIncomeLoss_019e2ce7-9bf4-7b3c-aa71-c8567e9b611c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019e2ce7-9bf4-769c-b7e1-1460c8357c40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019e2ce7-9bf4-769c-b7e1-1460c8357c40" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019e2ce7-9bf4-7599-9f79-d41672c69c1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019e2ce7-9bf4-7599-9f79-d41672c69c1e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_019e2ce7-9bf4-7f2e-afa5-00d76869a955" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_019e2ce7-9bf4-7f2e-afa5-00d76869a955" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019e2ce7-9bf4-73b0-89d8-e09cbfbb9aec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019e2ce7-9bf4-73b0-89d8-e09cbfbb9aec" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019e2ce7-9bf4-7c62-ae4b-ce7f911e157d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019e2ce7-9bf4-7c62-ae4b-ce7f911e157d" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_019e41db-fb58-75e2-a73c-b2c67fc453d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_019e41db-fb58-75e2-a73c-b2c67fc453d1" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_StockIssuedDuringPeriodShareWarrantsExercised_019e2ce7-9bf4-734c-97ae-963cdb6da683" xlink:href="core-20260630.xsd#core_StockIssuedDuringPeriodShareWarrantsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_core_StockIssuedDuringPeriodShareWarrantsExercised_019e2ce7-9bf4-734c-97ae-963cdb6da683" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_StockIssuedDuringPeriodValueWarrantsExercised_019e2ce7-9bf4-7a27-9fbd-fbc9518a0316" xlink:href="core-20260630.xsd#core_StockIssuedDuringPeriodValueWarrantsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e2ce7-9bf4-7a53-bef6-1e1d7d858666" xlink:to="loc_core_StockIssuedDuringPeriodValueWarrantsExercised_019e2ce7-9bf4-7a27-9fbd-fbc9518a0316" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019e2ce7-9bf4-7f6e-9d78-52cac9979036" 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_StockholdersEquity_019e2ce7-9bf4-7eb8-bc7e-4d767b81469b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/ORGANIZATIONANDDESCRIPTIONOFBUSINESSDetails" xlink:type="simple" xlink:href="core-20260630.xsd#ORGANIZATIONANDDESCRIPTIONOFBUSINESSDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/ORGANIZATIONANDDESCRIPTIONOFBUSINESSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductInformationLineItems_019e2ce7-9bf4-72fa-be9c-74057f2c2814" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfProductInformationTable_019e2ce7-9bf4-71d8-ac47-a9c30c6cc982" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfProductInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ProductInformationLineItems_019e2ce7-9bf4-72fa-be9c-74057f2c2814" xlink:to="loc_us-gaap_ScheduleOfProductInformationTable_019e2ce7-9bf4-71d8-ac47-a9c30c6cc982" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019e2ce7-9bf4-72dc-b180-62d41721520a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfProductInformationTable_019e2ce7-9bf4-71d8-ac47-a9c30c6cc982" xlink:to="loc_srt_StatementGeographicalAxis_019e2ce7-9bf4-72dc-b180-62d41721520a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-72dc-b180-62d41721520a_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019e2ce7-9bf4-72dc-b180-62d41721520a" xlink:to="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-72dc-b180-62d41721520a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019e2ce7-9bf4-72dc-b180-62d41721520a" xlink:to="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_AL_019e2ce7-9bf4-74be-a06c-8de8d483eb51" xlink:href="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd#stpr_AL"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:to="loc_stpr_AL_019e2ce7-9bf4-74be-a06c-8de8d483eb51" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_GA_019e2ce7-9bf4-7e0f-a22c-114c59953bdc" xlink:href="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd#stpr_GA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:to="loc_stpr_GA_019e2ce7-9bf4-7e0f-a22c-114c59953bdc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_KY_019e2ce7-9bf4-737d-9aec-b342289be993" xlink:href="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd#stpr_KY"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:to="loc_stpr_KY_019e2ce7-9bf4-737d-9aec-b342289be993" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_NC_019e2ce7-9bf4-72e3-b38a-a500ab1823dd" xlink:href="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd#stpr_NC"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:to="loc_stpr_NC_019e2ce7-9bf4-72e3-b38a-a500ab1823dd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_ND_019e2ce7-9bf4-7ecd-ba5d-f84054d26759" xlink:href="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd#stpr_ND"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:to="loc_stpr_ND_019e2ce7-9bf4-7ecd-ba5d-f84054d26759" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_OK_019e2ce7-9bf4-7597-aaf1-94fd4bb6e104" xlink:href="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd#stpr_OK"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:to="loc_stpr_OK_019e2ce7-9bf4-7597-aaf1-94fd4bb6e104" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_TX_019e2ce7-9bf4-7c61-8ff4-709ef421fb21" xlink:href="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd#stpr_TX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019e2ce7-9bf4-7a72-9e1f-f67f17cbb536" xlink:to="loc_stpr_TX_019e2ce7-9bf4-7c61-8ff4-709ef421fb21" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_NumberOfOperationalDataCenter_019e2ce7-9bf4-7b16-8aa2-fc66acff77ef" xlink:href="core-20260630.xsd#core_NumberOfOperationalDataCenter"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductInformationLineItems_019e2ce7-9bf4-72fa-be9c-74057f2c2814" xlink:to="loc_core_NumberOfOperationalDataCenter_019e2ce7-9bf4-7b16-8aa2-fc66acff77ef" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments_019e2ce7-9bf4-76a5-a1b8-8b14f36df2f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfOperatingSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductInformationLineItems_019e2ce7-9bf4-72fa-be9c-74057f2c2814" xlink:to="loc_us-gaap_NumberOfOperatingSegments_019e2ce7-9bf4-76a5-a1b8-8b14f36df2f6" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofBitcoinHoldingsDetails" xlink:type="simple" xlink:href="core-20260630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofBitcoinHoldingsDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofBitcoinHoldingsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetHoldingLineItems_019e2ce7-9bf4-769b-966d-8c98f134310c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CryptoAssetHoldingLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetHoldingTable_019e2ce7-9bf4-7e6f-96c2-f0a70755c94f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CryptoAssetHoldingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CryptoAssetHoldingLineItems_019e2ce7-9bf4-769b-966d-8c98f134310c" xlink:to="loc_us-gaap_CryptoAssetHoldingTable_019e2ce7-9bf4-7e6f-96c2-f0a70755c94f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CryptoAssetAxis_019e2ce7-9bf4-78c7-9812-e9e241fce197" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CryptoAssetAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_CryptoAssetHoldingTable_019e2ce7-9bf4-7e6f-96c2-f0a70755c94f" xlink:to="loc_srt_CryptoAssetAxis_019e2ce7-9bf4-78c7-9812-e9e241fce197" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CryptoAssetDomain_019e2ce7-9bf4-78c7-9812-e9e241fce197_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CryptoAssetDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CryptoAssetAxis_019e2ce7-9bf4-78c7-9812-e9e241fce197" xlink:to="loc_srt_CryptoAssetDomain_019e2ce7-9bf4-78c7-9812-e9e241fce197_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CryptoAssetDomain_019e2ce7-9bf4-7d24-8ce9-6b646f12e2e8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CryptoAssetDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CryptoAssetAxis_019e2ce7-9bf4-78c7-9812-e9e241fce197" xlink:to="loc_srt_CryptoAssetDomain_019e2ce7-9bf4-7d24-8ce9-6b646f12e2e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_BitcoinMember_019e2ce7-9bf4-759b-a167-d376f8b76f51" xlink:href="core-20260630.xsd#core_BitcoinMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CryptoAssetDomain_019e2ce7-9bf4-7d24-8ce9-6b646f12e2e8" xlink:to="loc_core_BitcoinMember_019e2ce7-9bf4-759b-a167-d376f8b76f51" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetNumberOfUnits_019e2ce7-9bf4-7c3f-b282-1c60268d4caf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CryptoAssetNumberOfUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CryptoAssetHoldingLineItems_019e2ce7-9bf4-769b-966d-8c98f134310c" xlink:to="loc_us-gaap_CryptoAssetNumberOfUnits_019e2ce7-9bf4-7c3f-b282-1c60268d4caf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetCost_019e2ce7-9bf4-7df6-b46b-fc4300feb5b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CryptoAssetCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CryptoAssetHoldingLineItems_019e2ce7-9bf4-769b-966d-8c98f134310c" xlink:to="loc_us-gaap_CryptoAssetCost_019e2ce7-9bf4-7df6-b46b-fc4300feb5b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetFairValueCurrent_019e2ce7-9bf4-78b0-9b80-a9a728b23893" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CryptoAssetFairValueCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CryptoAssetHoldingLineItems_019e2ce7-9bf4-769b-966d-8c98f134310c" xlink:to="loc_us-gaap_CryptoAssetFairValueCurrent_019e2ce7-9bf4-78b0-9b80-a9a728b23893" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" xlink:type="simple" xlink:href="core-20260630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_019f7049-8893-7294-9e1e-8486617296d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_019f7049-8893-78c3-ac0c-6d8dea415faa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_019f7049-8893-7294-9e1e-8486617296d0" xlink:to="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_019f7049-8893-78c3-ac0c-6d8dea415faa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019f7049-8893-7365-9b86-9a127a97b52f" 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_ScheduleOfRestrictedCashAndCashEquivalentsTable_019f7049-8893-78c3-ac0c-6d8dea415faa" xlink:to="loc_us-gaap_DebtInstrumentAxis_019f7049-8893-7365-9b86-9a127a97b52f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f7049-8893-7365-9b86-9a127a97b52f_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_019f7049-8893-7365-9b86-9a127a97b52f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f7049-8893-7365-9b86-9a127a97b52f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f7049-8893-72b0-830d-f81a1ffc3dcc" 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_019f7049-8893-7365-9b86-9a127a97b52f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f7049-8893-72b0-830d-f81a1ffc3dcc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_SeniorSecuredNotesDue2031Member_019f7049-8893-7626-b986-300b7e3cd376" xlink:href="core-20260630.xsd#core_SeniorSecuredNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f7049-8893-72b0-830d-f81a1ffc3dcc" xlink:to="loc_core_SeniorSecuredNotesDue2031Member_019f7049-8893-7626-b986-300b7e3cd376" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019f7049-8893-734c-879c-6c7d71260b7f" 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_ScheduleOfRestrictedCashAndCashEquivalentsTable_019f7049-8893-78c3-ac0c-6d8dea415faa" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019f7049-8893-734c-879c-6c7d71260b7f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f7049-8893-734c-879c-6c7d71260b7f_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_019f7049-8893-734c-879c-6c7d71260b7f" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f7049-8893-734c-879c-6c7d71260b7f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f7049-8893-75a6-b58e-04e0e083bd67" 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_019f7049-8893-734c-879c-6c7d71260b7f" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f7049-8893-75a6-b58e-04e0e083bd67" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019f7049-8893-721d-9c87-ba9f0c2ae6e6" 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_019f7049-8893-75a6-b58e-04e0e083bd67" xlink:to="loc_us-gaap_SeniorNotesMember_019f7049-8893-721d-9c87-ba9f0c2ae6e6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019f7049-8893-7274-9192-bfef47aac747" 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_RestrictedCashAndCashEquivalentsItemsLineItems_019f7049-8893-7294-9e1e-8486617296d0" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019f7049-8893-7274-9192-bfef47aac747" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019f7049-8893-7a41-872e-718d5b009950" 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_RestrictedCashAndCashEquivalentsItemsLineItems_019f7049-8893-7294-9e1e-8486617296d0" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019f7049-8893-7a41-872e-718d5b009950" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_019f2345-2dda-7eb2-8239-39dd9820e681" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_019f7049-8893-7294-9e1e-8486617296d0" xlink:to="loc_us-gaap_RestrictedCash_019f2345-2dda-7eb2-8239-39dd9820e681" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/ASSETACQUISITIONDetails" xlink:type="simple" xlink:href="core-20260630.xsd#ASSETACQUISITIONDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/ASSETACQUISITIONDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionLineItems_019f1d0e-64e0-730e-bc48-8a991521e4ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionTable_019f1d0e-64e0-7431-9369-ed12cb5a3726" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019f1d0e-64e0-730e-bc48-8a991521e4ee" xlink:to="loc_us-gaap_AssetAcquisitionTable_019f1d0e-64e0-7431-9369-ed12cb5a3726" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_019f1d1c-7f54-74fa-9a04-0106bb408896" 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_AssetAcquisitionTable_019f1d0e-64e0-7431-9369-ed12cb5a3726" xlink:to="loc_us-gaap_AssetAcquisitionAxis_019f1d1c-7f54-74fa-9a04-0106bb408896" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019f1d1c-7f54-74fa-9a04-0106bb408896_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_019f1d1c-7f54-74fa-9a04-0106bb408896" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019f1d1c-7f54-74fa-9a04-0106bb408896_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019f1d1c-7f54-7db0-a2c4-f771191a2752" 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_019f1d1c-7f54-74fa-9a04-0106bb408896" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019f1d1c-7f54-7db0-a2c4-f771191a2752" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_HuntCountyAcquisitionMember_019f1d1c-7f54-771e-ac15-1a3ecb35e077" xlink:href="core-20260630.xsd#core_HuntCountyAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_019f1d1c-7f54-7db0-a2c4-f771191a2752" xlink:to="loc_core_HuntCountyAcquisitionMember_019f1d1c-7f54-771e-ac15-1a3ecb35e077" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019f1d1e-dcea-712f-84e5-0bc88940d60b" 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_AssetAcquisitionTable_019f1d0e-64e0-7431-9369-ed12cb5a3726" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019f1d1e-dcea-712f-84e5-0bc88940d60b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f1d1e-dcea-712f-84e5-0bc88940d60b_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_019f1d1e-dcea-712f-84e5-0bc88940d60b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f1d1e-dcea-712f-84e5-0bc88940d60b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f1d1e-dcea-743f-878f-9693e672d991" 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_019f1d1e-dcea-712f-84e5-0bc88940d60b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f1d1e-dcea-743f-878f-9693e672d991" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_019f1d1e-dcea-738f-865c-7be84c22d360" 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_019f1d1e-dcea-743f-878f-9693e672d991" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_019f1d1e-dcea-738f-865c-7be84c22d360" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_019f1d1c-7f54-7e80-b260-9556d3a7d765" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019f1d0e-64e0-730e-bc48-8a991521e4ee" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_019f1d1c-7f54-7e80-b260-9556d3a7d765" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_AssetAcquisitionGrossUtilityPowerCapacity_019f1d1c-7f54-7c57-a758-ea7c2bd462c0" xlink:href="core-20260630.xsd#core_AssetAcquisitionGrossUtilityPowerCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019f1d0e-64e0-730e-bc48-8a991521e4ee" xlink:to="loc_core_AssetAcquisitionGrossUtilityPowerCapacity_019f1d1c-7f54-7c57-a758-ea7c2bd462c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_AssetAcquisitionLand_019f2352-045c-738a-8bc4-6bdc190f31b9" xlink:href="core-20260630.xsd#core_AssetAcquisitionLand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019f1d0e-64e0-730e-bc48-8a991521e4ee" xlink:to="loc_core_AssetAcquisitionLand_019f2352-045c-738a-8bc4-6bdc190f31b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_019f234d-697f-7a16-a24f-8e5669656bbf" 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_AssetAcquisitionLineItems_019f1d0e-64e0-730e-bc48-8a991521e4ee" xlink:to="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_019f234d-697f-7a16-a24f-8e5669656bbf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019f1d1e-dcea-761b-bd23-02c4c850fc99" 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_AssetAcquisitionLineItems_019f1d0e-64e0-730e-bc48-8a991521e4ee" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019f1d1e-dcea-761b-bd23-02c4c850fc99" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/PROPERTYPLANTANDEQUIPMENTScheduleofPropertyPlantandEquipmentNetDetails" xlink:type="simple" xlink:href="core-20260630.xsd#PROPERTYPLANTANDEQUIPMENTScheduleofPropertyPlantandEquipmentNetDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/PROPERTYPLANTANDEQUIPMENTScheduleofPropertyPlantandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7b2e-af54-805c1ffdeea5" 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_019e2ce7-9bf4-7701-a0f2-8cb28f49ccc2" 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_019e2ce7-9bf4-7b2e-af54-805c1ffdeea5" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019e2ce7-9bf4-7701-a0f2-8cb28f49ccc2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e2ce7-9bf4-7077-9612-6407e9e264e1" 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_019e2ce7-9bf4-7701-a0f2-8cb28f49ccc2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e2ce7-9bf4-7077-9612-6407e9e264e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-7077-9612-6407e9e264e1_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_019e2ce7-9bf4-7077-9612-6407e9e264e1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-7077-9612-6407e9e264e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-70a2-9caa-6c19fd6cd3db" 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_019e2ce7-9bf4-7077-9612-6407e9e264e1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-70a2-9caa-6c19fd6cd3db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-747f-a0fb-f4591bb1f407" xlink:href="core-20260630.xsd#core_DepreciablePropertyPlantAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-70a2-9caa-6c19fd6cd3db" xlink:to="loc_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-747f-a0fb-f4591bb1f407" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAndLandImprovementsMember_019e2ce7-9bf4-7198-8003-77590e49b4c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LandAndLandImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-747f-a0fb-f4591bb1f407" xlink:to="loc_us-gaap_LandAndLandImprovementsMember_019e2ce7-9bf4-7198-8003-77590e49b4c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_019e2ce7-9bf4-74aa-bee4-19370ab3c085" 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_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-747f-a0fb-f4591bb1f407" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_019e2ce7-9bf4-74aa-bee4-19370ab3c085" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_MiningEquipmentMember_019e2ce7-9bf4-7df4-affb-bb1d7cce8d5e" xlink:href="core-20260630.xsd#core_MiningEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-747f-a0fb-f4591bb1f407" xlink:to="loc_core_MiningEquipmentMember_019e2ce7-9bf4-7df4-affb-bb1d7cce8d5e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ElectricalAndMechanicalEquipmentMember_019e2ce7-9bf4-7228-aa61-fa0c1c365144" xlink:href="core-20260630.xsd#core_ElectricalAndMechanicalEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-747f-a0fb-f4591bb1f407" xlink:to="loc_core_ElectricalAndMechanicalEquipmentMember_019e2ce7-9bf4-7228-aa61-fa0c1c365144" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentOtherTypesMember_019e2ce7-9bf4-7d98-a7be-a9f62642f445" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentOtherTypesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-747f-a0fb-f4591bb1f407" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentOtherTypesMember_019e2ce7-9bf4-7d98-a7be-a9f62642f445" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_019e2ce7-9bf4-7cae-aba2-ddc9c478905d" 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_019e2ce7-9bf4-70a2-9caa-6c19fd6cd3db" xlink:to="loc_us-gaap_ConstructionInProgressMember_019e2ce7-9bf4-7cae-aba2-ddc9c478905d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019e2ce7-9bf4-7e3d-8443-30a9facb307e" 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_ScheduleOfPropertyPlantAndEquipmentTable_019e2ce7-9bf4-7701-a0f2-8cb28f49ccc2" xlink:to="loc_srt_RangeAxis_019e2ce7-9bf4-7e3d-8443-30a9facb307e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e2ce7-9bf4-7e3d-8443-30a9facb307e_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_019e2ce7-9bf4-7e3d-8443-30a9facb307e" xlink:to="loc_srt_RangeMember_019e2ce7-9bf4-7e3d-8443-30a9facb307e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e2ce7-9bf4-7b74-b0b0-77feb6d08d81" 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_019e2ce7-9bf4-7e3d-8443-30a9facb307e" xlink:to="loc_srt_RangeMember_019e2ce7-9bf4-7b74-b0b0-77feb6d08d81" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019e2ce7-9bf4-716b-9531-a7d2485856f9" 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_019e2ce7-9bf4-7b74-b0b0-77feb6d08d81" xlink:to="loc_srt_MinimumMember_019e2ce7-9bf4-716b-9531-a7d2485856f9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019e2ce7-9bf4-70de-90b6-ba6dd7df8bbb" 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_019e2ce7-9bf4-7b74-b0b0-77feb6d08d81" xlink:to="loc_srt_MaximumMember_019e2ce7-9bf4-70de-90b6-ba6dd7df8bbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseBeforeAccumulatedDepreciation_019e2ce7-9bf4-7e99-9f69-537954884e9a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseBeforeAccumulatedDepreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7b2e-af54-805c1ffdeea5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseBeforeAccumulatedDepreciation_019e2ce7-9bf4-7e99-9f69-537954884e9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseAccumulatedDepreciation_019e2ce7-9bf4-76ed-9818-89371ca3f48a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseAccumulatedDepreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7b2e-af54-805c1ffdeea5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseAccumulatedDepreciation_019e2ce7-9bf4-76ed-9818-89371ca3f48a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseAfterAccumulatedDepreciation_019e2ce7-9bf4-7b3f-bb42-c1480f9914f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseAfterAccumulatedDepreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7b2e-af54-805c1ffdeea5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentExcludingLessorAssetUnderOperatingLeaseAfterAccumulatedDepreciation_019e2ce7-9bf4-7b3f-bb42-c1480f9914f3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019e2ce7-9bf4-7c99-a151-ec4f480bdd5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7b2e-af54-805c1ffdeea5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019e2ce7-9bf4-7c99-a151-ec4f480bdd5e" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/PROPERTYPLANTANDEQUIPMENTNarrativeDetails" xlink:type="simple" xlink:href="core-20260630.xsd#PROPERTYPLANTANDEQUIPMENTNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/PROPERTYPLANTANDEQUIPMENTNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7a6f-9e9e-21215a8bafb0" 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_019e2ce7-9bf4-7011-87c2-df8ff686dbd2" 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_019e2ce7-9bf4-7a6f-9e9e-21215a8bafb0" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019e2ce7-9bf4-7011-87c2-df8ff686dbd2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e2ce7-9bf4-7d17-832f-fc409695ff70" 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_019e2ce7-9bf4-7011-87c2-df8ff686dbd2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e2ce7-9bf4-7d17-832f-fc409695ff70" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-7d17-832f-fc409695ff70_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_019e2ce7-9bf4-7d17-832f-fc409695ff70" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-7d17-832f-fc409695ff70_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-780d-84da-7798ac88b685" 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_019e2ce7-9bf4-7d17-832f-fc409695ff70" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-780d-84da-7798ac88b685" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_019e2ce7-9bf4-746a-bbec-1d2ca9f4d2b3" 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_019e2ce7-9bf4-780d-84da-7798ac88b685" xlink:to="loc_us-gaap_ConstructionInProgressMember_019e2ce7-9bf4-746a-bbec-1d2ca9f4d2b3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-7e6b-b64c-a1f0fa4fb1e7" xlink:href="core-20260630.xsd#core_DepreciablePropertyPlantAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-780d-84da-7798ac88b685" xlink:to="loc_core_DepreciablePropertyPlantAndEquipmentMember_019e2ce7-9bf4-7e6b-b64c-a1f0fa4fb1e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_MiningEquipmentMember_019e2ce7-9bf4-702d-9f63-b07f2a27904a" xlink:href="core-20260630.xsd#core_MiningEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-780d-84da-7798ac88b685" xlink:to="loc_core_MiningEquipmentMember_019e2ce7-9bf4-702d-9f63-b07f2a27904a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_MiningInfrastructureMember_019e2ce7-9bf4-70e2-8a1b-88a1f8997d61" xlink:href="core-20260630.xsd#core_MiningInfrastructureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-780d-84da-7798ac88b685" xlink:to="loc_core_MiningInfrastructureMember_019e2ce7-9bf4-70e2-8a1b-88a1f8997d61" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_019f1d27-c98f-7f1b-b691-82f30b0a270e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019e2ce7-9bf4-7011-87c2-df8ff686dbd2" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_019f1d27-c98f-7f1b-b691-82f30b0a270e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_019f1d27-c98f-7f1b-b691-82f30b0a270e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_019f1d27-c98f-7f1b-b691-82f30b0a270e" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_019f1d27-c98f-7f1b-b691-82f30b0a270e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_019f1d27-c98f-7946-8977-815cf157cedc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_019f1d27-c98f-7f1b-b691-82f30b0a270e" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_019f1d27-c98f-7946-8977-815cf157cedc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_019f1d27-ebe6-7f47-803a-1e5c04ef3b0e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_019f1d27-c98f-7946-8977-815cf157cedc" xlink:to="loc_us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_019f1d27-ebe6-7f47-803a-1e5c04ef3b0e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019f66eb-e649-71c3-8af9-fa34927fda5d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019e2ce7-9bf4-7011-87c2-df8ff686dbd2" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019f66eb-e649-71c3-8af9-fa34927fda5d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019f66eb-e649-71c3-8af9-fa34927fda5d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019f66eb-e649-71c3-8af9-fa34927fda5d" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019f66eb-e649-71c3-8af9-fa34927fda5d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019f66eb-e649-78ea-9e82-21d1eb341d9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019f66eb-e649-71c3-8af9-fa34927fda5d" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019f66eb-e649-78ea-9e82-21d1eb341d9c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_MiningEquipmentAndElectricalEquipmentMember_019f66ec-8af6-7306-a07b-22b3a8f641d2" xlink:href="core-20260630.xsd#core_MiningEquipmentAndElectricalEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019f66eb-e649-78ea-9e82-21d1eb341d9c" xlink:to="loc_core_MiningEquipmentAndElectricalEquipmentMember_019f66ec-8af6-7306-a07b-22b3a8f641d2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019e2ce7-9bf4-7337-acbc-3cc7702bc1aa" 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_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7a6f-9e9e-21215a8bafb0" xlink:to="loc_us-gaap_Depreciation_019e2ce7-9bf4-7337-acbc-3cc7702bc1aa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTransfersAndChanges_019e2ce7-9bf4-7ac2-a67f-18de10eb3815" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTransfersAndChanges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7a6f-9e9e-21215a8bafb0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTransfersAndChanges_019e2ce7-9bf4-7ac2-a67f-18de10eb3815" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease_019e2ce7-9bf4-73d4-b1b4-78ba04930d0f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7a6f-9e9e-21215a8bafb0" xlink:to="loc_us-gaap_OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease_019e2ce7-9bf4-73d4-b1b4-78ba04930d0f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TangibleAssetImpairmentCharges_019e2ce7-9bf4-75f6-9b29-fa511a381e8f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TangibleAssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7a6f-9e9e-21215a8bafb0" xlink:to="loc_us-gaap_TangibleAssetImpairmentCharges_019e2ce7-9bf4-75f6-9b29-fa511a381e8f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown_019f5bdf-b6e6-7b27-b5a2-89a6f1a915df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7a6f-9e9e-21215a8bafb0" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown_019f5bdf-b6e6-7b27-b5a2-89a6f1a915df" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_019f66eb-68d9-7e00-a42e-05d59e6e602a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-7a6f-9e9e-21215a8bafb0" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_019f66eb-68d9-7e00-a42e-05d59e6e602a" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/PROPERTYPLANTANDEQUIPMENTScheduleofPropertyPlantandEquipmentNetLeasedtoCustomersDetails" xlink:type="simple" xlink:href="core-20260630.xsd#PROPERTYPLANTANDEQUIPMENTScheduleofPropertyPlantandEquipmentNetLeasedtoCustomersDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/PROPERTYPLANTANDEQUIPMENTScheduleofPropertyPlantandEquipmentNetLeasedtoCustomersDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-71df-a785-15e8d5b0e952" 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_019e2ce7-9bf4-7053-9997-63413adb1021" 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_019e2ce7-9bf4-71df-a785-15e8d5b0e952" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019e2ce7-9bf4-7053-9997-63413adb1021" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e2ce7-9bf4-78cd-a5a5-5734768d264a" 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_019e2ce7-9bf4-7053-9997-63413adb1021" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019e2ce7-9bf4-78cd-a5a5-5734768d264a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-78cd-a5a5-5734768d264a_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_019e2ce7-9bf4-78cd-a5a5-5734768d264a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-78cd-a5a5-5734768d264a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-72fe-93e7-7981b77a2f3e" 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_019e2ce7-9bf4-78cd-a5a5-5734768d264a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-72fe-93e7-7981b77a2f3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAndLandImprovementsMember_019e2ce7-9bf4-7993-8b3c-2c0864a2c91c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LandAndLandImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-72fe-93e7-7981b77a2f3e" xlink:to="loc_us-gaap_LandAndLandImprovementsMember_019e2ce7-9bf4-7993-8b3c-2c0864a2c91c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_019e2ce7-9bf4-7db1-872b-6b499f475ea8" 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_019e2ce7-9bf4-72fe-93e7-7981b77a2f3e" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_019e2ce7-9bf4-7db1-872b-6b499f475ea8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ElectricalAndMechanicalEquipmentMember_019e2ce7-9bf4-76ce-9e58-46f99fefec33" xlink:href="core-20260630.xsd#core_ElectricalAndMechanicalEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-72fe-93e7-7981b77a2f3e" xlink:to="loc_core_ElectricalAndMechanicalEquipmentMember_019e2ce7-9bf4-76ce-9e58-46f99fefec33" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentOtherTypesMember_019e2ce7-9bf4-7f85-8764-fb45bad241d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentOtherTypesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019e2ce7-9bf4-72fe-93e7-7981b77a2f3e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentOtherTypesMember_019e2ce7-9bf4-7f85-8764-fb45bad241d8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross_019e2ce7-9bf4-7ff7-bd31-3b4026ce1169" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-71df-a785-15e8d5b0e952" xlink:to="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross_019e2ce7-9bf4-7ff7-bd31-3b4026ce1169" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation_019e2ce7-9bf4-7ba2-845b-1430edc5b3fb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-71df-a785-15e8d5b0e952" xlink:to="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation_019e2ce7-9bf4-7ba2-845b-1430edc5b3fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet_019e2ce7-9bf4-73f8-beb3-502a666f043c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019e2ce7-9bf4-71df-a785-15e8d5b0e952" xlink:to="loc_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet_019e2ce7-9bf4-73f8-beb3-502a666f043c" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/LEASESScheduleofLeaseCostDetails" xlink:type="simple" xlink:href="core-20260630.xsd#LEASESScheduleofLeaseCostDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/LEASESScheduleofLeaseCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019e2ce7-9bf4-79bf-a656-503b671bd7c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019e2ce7-9bf4-79bf-a656-503b671bd7c1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019e2ce7-9bf4-73d7-a5e9-9597f78c0356" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019e2ce7-9bf4-79bf-a656-503b671bd7c1" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019e2ce7-9bf4-73d7-a5e9-9597f78c0356" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019e2ce7-9bf4-7a09-ac33-357d345f36a0" 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_LesseeLeaseDescriptionTable_019e2ce7-9bf4-79bf-a656-503b671bd7c1" xlink:to="loc_srt_ProductOrServiceAxis_019e2ce7-9bf4-7a09-ac33-357d345f36a0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7a09-ac33-357d345f36a0_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_019e2ce7-9bf4-7a09-ac33-357d345f36a0" xlink:to="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7a09-ac33-357d345f36a0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" 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_019e2ce7-9bf4-7a09-ac33-357d345f36a0" xlink:to="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ColocationServiceMember_019e2ce7-9bf4-7bf9-95af-34fe623a6fb2" xlink:href="core-20260630.xsd#core_ColocationServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" xlink:to="loc_core_ColocationServiceMember_019e2ce7-9bf4-7bf9-95af-34fe623a6fb2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetSelfMiningServiceMember_019e2ce7-9bf4-70e7-9e62-00c1bcca88f7" xlink:href="core-20260630.xsd#core_DigitalAssetSelfMiningServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" xlink:to="loc_core_DigitalAssetSelfMiningServiceMember_019e2ce7-9bf4-70e7-9e62-00c1bcca88f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetHostedMiningServiceMember_019e2ce7-9bf4-75d3-aaf5-c8be3f2585ec" xlink:href="core-20260630.xsd#core_DigitalAssetHostedMiningServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" xlink:to="loc_core_DigitalAssetHostedMiningServiceMember_019e2ce7-9bf4-75d3-aaf5-c8be3f2585ec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_019e2ce7-9bf4-7449-a41b-d7f6303a50b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_OperatingLeaseCost_019e2ce7-9bf4-7449-a41b-d7f6303a50b8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermLeaseCost_019e2ce7-9bf4-70ba-b5be-5293f46b5e7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_ShortTermLeaseCost_019e2ce7-9bf4-70ba-b5be-5293f46b5e7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_019e2ce7-9bf4-7a05-87d0-cc0452f06036" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_VariableLeaseCost_019e2ce7-9bf4-7a05-87d0-cc0452f06036" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeFinanceLeaseDescriptionAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_019e2ce7-9bf4-7e04-8360-2a62aae373c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_019e2ce7-9bf4-7e04-8360-2a62aae373c6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_019e2ce7-9bf4-7143-a57e-9db5a8f4e511" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_019e2ce7-9bf4-7143-a57e-9db5a8f4e511" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_FinanceLeaseCost_019e2ce7-9bf4-73f5-90bf-bc7d6846d857" xlink:href="core-20260630.xsd#core_FinanceLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:to="loc_core_FinanceLeaseCost_019e2ce7-9bf4-73f5-90bf-bc7d6846d857" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_019e2ce7-9bf4-736c-9ad7-0f8dba008958" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_LeaseCost_019e2ce7-9bf4-736c-9ad7-0f8dba008958" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/LEASESScheduleofLeaseCostDetails_1" xlink:type="simple" xlink:href="core-20260630.xsd#LEASESScheduleofLeaseCostDetails_1"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/LEASESScheduleofLeaseCostDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019e2ce7-9bf4-79bf-a656-503b671bd7c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019e2ce7-9bf4-79bf-a656-503b671bd7c1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019e2ce7-9bf4-7a09-ac33-357d345f36a0" 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_LesseeLeaseDescriptionTable_019e2ce7-9bf4-79bf-a656-503b671bd7c1" xlink:to="loc_srt_ProductOrServiceAxis_019e2ce7-9bf4-7a09-ac33-357d345f36a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7a09-ac33-357d345f36a0_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_019e2ce7-9bf4-7a09-ac33-357d345f36a0" xlink:to="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-7a09-ac33-357d345f36a0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" 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_019e2ce7-9bf4-7a09-ac33-357d345f36a0" xlink:to="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ColocationServiceMember_019e2ce7-9bf4-7bf9-95af-34fe623a6fb2" xlink:href="core-20260630.xsd#core_ColocationServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" xlink:to="loc_core_ColocationServiceMember_019e2ce7-9bf4-7bf9-95af-34fe623a6fb2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetSelfMiningServiceMember_019e2ce7-9bf4-70e7-9e62-00c1bcca88f7" xlink:href="core-20260630.xsd#core_DigitalAssetSelfMiningServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" xlink:to="loc_core_DigitalAssetSelfMiningServiceMember_019e2ce7-9bf4-70e7-9e62-00c1bcca88f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetHostedMiningServiceMember_019e2ce7-9bf4-75d3-aaf5-c8be3f2585ec" xlink:href="core-20260630.xsd#core_DigitalAssetHostedMiningServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9bf4-755a-8441-09d398a36876" xlink:to="loc_core_DigitalAssetHostedMiningServiceMember_019e2ce7-9bf4-75d3-aaf5-c8be3f2585ec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_019e2ce7-9bf4-7449-a41b-d7f6303a50b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_OperatingLeaseCost_019e2ce7-9bf4-7449-a41b-d7f6303a50b8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermLeaseCost_019e2ce7-9bf4-70ba-b5be-5293f46b5e7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_ShortTermLeaseCost_019e2ce7-9bf4-70ba-b5be-5293f46b5e7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_019e2ce7-9bf4-7a05-87d0-cc0452f06036" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_VariableLeaseCost_019e2ce7-9bf4-7a05-87d0-cc0452f06036" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeFinanceLeaseDescriptionAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_019e2ce7-9bf4-7e04-8360-2a62aae373c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_019e2ce7-9bf4-7e04-8360-2a62aae373c6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_019e2ce7-9bf4-7143-a57e-9db5a8f4e511" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_019e2ce7-9bf4-7143-a57e-9db5a8f4e511" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_FinanceLeaseCost_019e2ce7-9bf4-73f5-90bf-bc7d6846d857" xlink:href="core-20260630.xsd#core_FinanceLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeFinanceLeaseDescriptionAbstract_019e2ce7-9bf4-751f-90ad-74724e470b6c" xlink:to="loc_core_FinanceLeaseCost_019e2ce7-9bf4-73f5-90bf-bc7d6846d857" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_019e2ce7-9bf4-736c-9ad7-0f8dba008958" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019e2ce7-9bf4-7574-abb4-af5655322062" xlink:to="loc_us-gaap_LeaseCost_019e2ce7-9bf4-736c-9ad7-0f8dba008958" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/DEBTScheduleofNotesPayableDetails" xlink:type="simple" xlink:href="core-20260630.xsd#DEBTScheduleofNotesPayableDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/DEBTScheduleofNotesPayableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f64-af9d-dbd4bfb62a40" 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_019e2ce7-9bf4-739c-a823-a188292e6196" 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_019e2ce7-9bf4-7f64-af9d-dbd4bfb62a40" xlink:to="loc_us-gaap_DebtInstrumentTable_019e2ce7-9bf4-739c-a823-a188292e6196" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e2ce7-9bf4-7cc6-8141-b2d0d254a745" 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_019e2ce7-9bf4-739c-a823-a188292e6196" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e2ce7-9bf4-7cc6-8141-b2d0d254a745" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9bf4-7cc6-8141-b2d0d254a745_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_019e2ce7-9bf4-7cc6-8141-b2d0d254a745" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9bf4-7cc6-8141-b2d0d254a745_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9bf4-7e7d-bfa5-0ebc8a6af01a" 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_019e2ce7-9bf4-7cc6-8141-b2d0d254a745" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9bf4-7e7d-bfa5-0ebc8a6af01a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_SeniorSecuredNotesDue2031Member_019e5072-dfe2-7d7d-9941-a5e92a498715" xlink:href="core-20260630.xsd#core_SeniorSecuredNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9bf4-7e7d-bfa5-0ebc8a6af01a" xlink:to="loc_core_SeniorSecuredNotesDue2031Member_019e5072-dfe2-7d7d-9941-a5e92a498715" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_A3.00ConvertibleSeniorNotesDue2029Member_019e2ce7-9bf4-728a-af38-33d1cdef6205" xlink:href="core-20260630.xsd#core_A3.00ConvertibleSeniorNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9bf4-7e7d-bfa5-0ebc8a6af01a" xlink:to="loc_core_A3.00ConvertibleSeniorNotesDue2029Member_019e2ce7-9bf4-728a-af38-33d1cdef6205" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ConvertibleSeniorNotesDue2031Member_019e2ce7-9bf4-71ab-a0d0-bedb2cacb300" xlink:href="core-20260630.xsd#core_ConvertibleSeniorNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9bf4-7e7d-bfa5-0ebc8a6af01a" xlink:to="loc_core_ConvertibleSeniorNotesDue2031Member_019e2ce7-9bf4-71ab-a0d0-bedb2cacb300" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e2ce7-9bf4-7b9f-a460-e9e6b734cca6" 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_019e2ce7-9bf4-739c-a823-a188292e6196" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e2ce7-9bf4-7b9f-a460-e9e6b734cca6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7b9f-a460-e9e6b734cca6_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_019e2ce7-9bf4-7b9f-a460-e9e6b734cca6" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7b9f-a460-e9e6b734cca6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7d45-b482-84fd43cfd89e" 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_019e2ce7-9bf4-7b9f-a460-e9e6b734cca6" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7d45-b482-84fd43cfd89e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019f5bbc-9334-71cc-8eb9-5f22c0acc6fe" 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_019e2ce7-9bf4-7d45-b482-84fd43cfd89e" xlink:to="loc_us-gaap_SeniorNotesMember_019f5bbc-9334-71cc-8eb9-5f22c0acc6fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_019e2ce7-9bf4-7985-b7d0-b1ed422fc0f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7d45-b482-84fd43cfd89e" xlink:to="loc_us-gaap_ConvertibleDebtMember_019e2ce7-9bf4-7985-b7d0-b1ed422fc0f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e2ce7-9bf4-72d1-a021-4bef6e0774af" 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_019e2ce7-9bf4-7f64-af9d-dbd4bfb62a40" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e2ce7-9bf4-72d1-a021-4bef6e0774af" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e2ce7-9bf4-757e-876f-79384591e8ca" 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_019e2ce7-9bf4-7f64-af9d-dbd4bfb62a40" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e2ce7-9bf4-757e-876f-79384591e8ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e2ce7-9bf4-70d4-884f-fa12e369a9a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f64-af9d-dbd4bfb62a40" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019e2ce7-9bf4-70d4-884f-fa12e369a9a5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_019e2ce7-9bf4-72a1-9746-ca3827d9ea5d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f64-af9d-dbd4bfb62a40" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_019e2ce7-9bf4-72a1-9746-ca3827d9ea5d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e2ce7-9bf4-7dec-a6a7-4fc54380ccee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f64-af9d-dbd4bfb62a40" xlink:to="loc_us-gaap_LongTermDebt_019e2ce7-9bf4-7dec-a6a7-4fc54380ccee" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/DEBTScheduleofMaturitiesofDebtDetails" xlink:type="simple" xlink:href="core-20260630.xsd#DEBTScheduleofMaturitiesofDebtDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/DEBTScheduleofMaturitiesofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" 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_019e2ce7-9bf4-72cc-9509-b329799003f6" 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_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" xlink:to="loc_us-gaap_DebtInstrumentTable_019e2ce7-9bf4-72cc-9509-b329799003f6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e2ce7-9bf4-7b4f-ae73-9c8831ae8f0e" 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_019e2ce7-9bf4-72cc-9509-b329799003f6" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e2ce7-9bf4-7b4f-ae73-9c8831ae8f0e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7b4f-ae73-9c8831ae8f0e_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_019e2ce7-9bf4-7b4f-ae73-9c8831ae8f0e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7b4f-ae73-9c8831ae8f0e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7578-b699-dd0607677d8a" 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_019e2ce7-9bf4-7b4f-ae73-9c8831ae8f0e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7578-b699-dd0607677d8a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_019e2ce7-9bf4-7f00-96c4-86fb77ed05fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9bf4-7578-b699-dd0607677d8a" xlink:to="loc_us-gaap_ConvertibleDebtMember_019e2ce7-9bf4-7f00-96c4-86fb77ed05fd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019e507d-a19d-727e-a53e-bd467267c9f4" 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_019e2ce7-9bf4-7578-b699-dd0607677d8a" xlink:to="loc_us-gaap_SeniorNotesMember_019e507d-a19d-727e-a53e-bd467267c9f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e2ce7-9bf4-7b2f-8693-58dab790e360" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e2ce7-9bf4-7b2f-8693-58dab790e360" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e2ce7-9bf4-74a2-93cc-ec3ce1030ae9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e2ce7-9bf4-74a2-93cc-ec3ce1030ae9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e2ce7-9bf4-7657-aa6c-fac1fa991db0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e2ce7-9bf4-7657-aa6c-fac1fa991db0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e2ce7-9bf4-7904-8eb7-f149dbf8718c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e2ce7-9bf4-7904-8eb7-f149dbf8718c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019e2ce7-9bf4-7e10-9f35-a71c81d1a047" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019e2ce7-9bf4-7e10-9f35-a71c81d1a047" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_LongTermDebtMaturityAfterYearFour_019e2ce7-9bf4-7247-8bbb-6dd624f06b36" xlink:href="core-20260630.xsd#core_LongTermDebtMaturityAfterYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" xlink:to="loc_core_LongTermDebtMaturityAfterYearFour_019e2ce7-9bf4-7247-8bbb-6dd624f06b36" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e2ce7-9bf4-7bbe-a677-34b72c7cc0d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7011-a1dd-76622fec6d0e" xlink:to="loc_us-gaap_LongTermDebt_019e2ce7-9bf4-7bbe-a677-34b72c7cc0d1" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/DEBTNarrativeDetails" xlink:type="simple" xlink:href="core-20260630.xsd#DEBTNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/DEBTNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" 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_019e2ce7-9bf4-7f61-b38e-c5bac4ff85cd" 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_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentTable_019e2ce7-9bf4-7f61-b38e-c5bac4ff85cd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e50bf-c6d5-78bf-bf0b-a88fcc444666" 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_019e2ce7-9bf4-7f61-b38e-c5bac4ff85cd" xlink:to="loc_us-gaap_CreditFacilityAxis_019e50bf-c6d5-78bf-bf0b-a88fcc444666" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e50bf-c6d5-78bf-bf0b-a88fcc444666_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_019e50bf-c6d5-78bf-bf0b-a88fcc444666" xlink:to="loc_us-gaap_CreditFacilityDomain_019e50bf-c6d5-78bf-bf0b-a88fcc444666_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e50bf-c6d5-7dac-8a49-196eec3e3af8" 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_019e50bf-c6d5-78bf-bf0b-a88fcc444666" xlink:to="loc_us-gaap_CreditFacilityDomain_019e50bf-c6d5-7dac-8a49-196eec3e3af8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019e50bf-c6d5-7126-b03d-a23b6a345b2b" 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_019e50bf-c6d5-7dac-8a49-196eec3e3af8" xlink:to="loc_us-gaap_SecuredDebtMember_019e50bf-c6d5-7126-b03d-a23b6a345b2b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e50bf-72b4-74d2-8578-280595ef74c0" 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_019e2ce7-9bf4-7f61-b38e-c5bac4ff85cd" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e50bf-72b4-74d2-8578-280595ef74c0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e50bf-72b4-74d2-8578-280595ef74c0_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_019e50bf-72b4-74d2-8578-280595ef74c0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e50bf-72b4-74d2-8578-280595ef74c0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e50bf-72b4-7e02-aace-20fd13f4547c" 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_019e50bf-72b4-74d2-8578-280595ef74c0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e50bf-72b4-7e02-aace-20fd13f4547c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_TermLoanFacilityMember_019f704e-8a66-7008-a326-7f346cf52a73" xlink:href="core-20260630.xsd#core_TermLoanFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e50bf-72b4-7e02-aace-20fd13f4547c" xlink:to="loc_core_TermLoanFacilityMember_019f704e-8a66-7008-a326-7f346cf52a73" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_SeniorSecuredNotesDue2031Member_019e50bf-72b4-7a8b-97fc-f742ca083188" xlink:href="core-20260630.xsd#core_SeniorSecuredNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e50bf-72b4-7e02-aace-20fd13f4547c" xlink:to="loc_core_SeniorSecuredNotesDue2031Member_019e50bf-72b4-7a8b-97fc-f742ca083188" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_A3.00ConvertibleSeniorNotesDue2029Member_019e50bf-72b4-75a6-ae6d-e40b8561b530" xlink:href="core-20260630.xsd#core_A3.00ConvertibleSeniorNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e50bf-72b4-7e02-aace-20fd13f4547c" xlink:to="loc_core_A3.00ConvertibleSeniorNotesDue2029Member_019e50bf-72b4-75a6-ae6d-e40b8561b530" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ConvertibleSeniorNotesDue2031Member_019e50bf-72b4-7c98-8732-c74807178072" xlink:href="core-20260630.xsd#core_ConvertibleSeniorNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e50bf-72b4-7e02-aace-20fd13f4547c" xlink:to="loc_core_ConvertibleSeniorNotesDue2031Member_019e50bf-72b4-7c98-8732-c74807178072" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_019e50bf-c6d5-72a4-9129-01b9ca087f35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019e2ce7-9bf4-7f61-b38e-c5bac4ff85cd" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_019e50bf-c6d5-72a4-9129-01b9ca087f35" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019e50bf-c6d5-72a4-9129-01b9ca087f35_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019e50bf-c6d5-72a4-9129-01b9ca087f35" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019e50bf-c6d5-72a4-9129-01b9ca087f35_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019e50bf-c6d5-7d28-a571-12753db0480d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019e50bf-c6d5-72a4-9129-01b9ca087f35" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019e50bf-c6d5-7d28-a571-12753db0480d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e50bf-c6d5-74e1-8f3f-e7d1bc257d26" 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_ShortTermDebtTypeDomain_019e50bf-c6d5-7d28-a571-12753db0480d" xlink:to="loc_us-gaap_LineOfCreditMember_019e50bf-c6d5-74e1-8f3f-e7d1bc257d26" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e50bf-72b4-7399-960c-16b48dcda6af" 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_019e2ce7-9bf4-7f61-b38e-c5bac4ff85cd" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e50bf-72b4-7399-960c-16b48dcda6af" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e50bf-72b4-7399-960c-16b48dcda6af_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_019e50bf-72b4-7399-960c-16b48dcda6af" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e50bf-72b4-7399-960c-16b48dcda6af_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e50bf-72b4-7a87-b565-24e7f0a9da3c" 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_019e50bf-72b4-7399-960c-16b48dcda6af" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e50bf-72b4-7a87-b565-24e7f0a9da3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019f5bbd-2403-75fe-8226-ddb56aeb364c" 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_019e50bf-72b4-7a87-b565-24e7f0a9da3c" xlink:to="loc_us-gaap_SeniorNotesMember_019f5bbd-2403-75fe-8226-ddb56aeb364c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_019e50bf-72b4-7eff-a100-69585005d7d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e50bf-72b4-7a87-b565-24e7f0a9da3c" xlink:to="loc_us-gaap_ConvertibleDebtMember_019e50bf-72b4-7eff-a100-69585005d7d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019f5bbf-53ef-760d-bb74-cdb4b6f1eeb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019f5bbf-53ef-760d-bb74-cdb4b6f1eeb5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e50bf-c6d5-7870-9437-485fe0ed87f1" 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_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e50bf-c6d5-7870-9437-485fe0ed87f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019f1d3e-7d4f-71f1-851b-7d5e503c1f49" 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_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentTerm_019f1d3e-7d4f-71f1-851b-7d5e503c1f49" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019f5a9d-ad46-7433-afdc-656d30f51d48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019f5a9d-ad46-7433-afdc-656d30f51d48" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_019f60c8-50af-7fcb-afe1-d7e8b061d959" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_019f60c8-50af-7fcb-afe1-d7e8b061d959" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019f5a9b-b851-732e-a710-0653f6da8903" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019f5a9b-b851-732e-a710-0653f6da8903" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_019e50bf-72b4-7d5c-9544-c4ae43f1bb97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_019e50bf-72b4-7d5c-9544-c4ae43f1bb97" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019e50bf-72b4-7bbf-9fdd-85bb76f1ae96" 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_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019e50bf-72b4-7bbf-9fdd-85bb76f1ae96" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e50bf-72b4-7233-b477-3813c51ef16f" 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_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e50bf-72b4-7233-b477-3813c51ef16f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DebtInstrumentIssuePricePercentage_019f5bc5-f8a8-7afc-8368-9544050de1f0" xlink:href="core-20260630.xsd#core_DebtInstrumentIssuePricePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_core_DebtInstrumentIssuePricePercentage_019f5bc5-f8a8-7afc-8368-9544050de1f0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DebtInstrumentPeriodicPaymentPercentOfPrincipal_019e50bf-72b4-7da2-8a0e-e145a695dbc7" xlink:href="core-20260630.xsd#core_DebtInstrumentPeriodicPaymentPercentOfPrincipal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_core_DebtInstrumentPeriodicPaymentPercentOfPrincipal_019e50bf-72b4-7da2-8a0e-e145a695dbc7" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_019e50bf-72b4-7a23-9be7-fd78688aae7a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_019e50bf-72b4-7a23-9be7-fd78688aae7a" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_019e50bf-72b4-788d-9e12-469be793ef22" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_019e50bf-72b4-788d-9e12-469be793ef22" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleStockPriceTrigger_019e50bf-72b4-7b3e-ae9b-cbd6535b282b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleStockPriceTrigger"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentConvertibleStockPriceTrigger_019e50bf-72b4-7b3e-ae9b-cbd6535b282b" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_019e50bf-72b4-7366-8d7b-d63973339878" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_019e50bf-72b4-7366-8d7b-d63973339878" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_019e50bf-72b4-75ff-ab84-d1c32fe4df75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_019e50bf-72b4-75ff-ab84-d1c32fe4df75" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_019e50bf-72b4-7cb4-a6e9-1e8291146488" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e2ce7-9bf4-7f48-b35c-b8311e6ef0ed" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_019e50bf-72b4-7cb4-a6e9-1e8291146488" xlink:type="arc" order="16"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/WARRANTLIABILITIESDetails" xlink:type="simple" xlink:href="core-20260630.xsd#WARRANTLIABILITIESDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/WARRANTLIABILITIESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityLineItems_019e2ce7-9bf4-75d1-a372-cba93e88feed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityByClassOfStockTable_019e2ce7-9bf4-7840-8b97-226f3b58bdf8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityByClassOfStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_TemporaryEquityLineItems_019e2ce7-9bf4-75d1-a372-cba93e88feed" xlink:to="loc_us-gaap_TemporaryEquityByClassOfStockTable_019e2ce7-9bf4-7840-8b97-226f3b58bdf8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019e2ce7-9bf4-7cec-b10a-df15afd0681c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_TemporaryEquityByClassOfStockTable_019e2ce7-9bf4-7840-8b97-226f3b58bdf8" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019e2ce7-9bf4-7cec-b10a-df15afd0681c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9bf4-7cec-b10a-df15afd0681c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019e2ce7-9bf4-7cec-b10a-df15afd0681c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9bf4-7cec-b10a-df15afd0681c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9bf4-7878-8834-ff052c54e3ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019e2ce7-9bf4-7cec-b10a-df15afd0681c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9bf4-7878-8834-ff052c54e3ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantTranche1Member_019e2ce7-9bf4-73b0-9202-5d0900c98cbb" xlink:href="core-20260630.xsd#core_WarrantTranche1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9bf4-7878-8834-ff052c54e3ed" xlink:to="loc_core_WarrantTranche1Member_019e2ce7-9bf4-73b0-9202-5d0900c98cbb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantTranche2Member_019e2ce7-9bf4-77c7-84a7-9b49599e63bb" xlink:href="core-20260630.xsd#core_WarrantTranche2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9bf4-7878-8834-ff052c54e3ed" xlink:to="loc_core_WarrantTranche2Member_019e2ce7-9bf4-77c7-84a7-9b49599e63bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019e2ce7-9bf4-75d6-ac14-7a6d72c2d2b5" 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_TemporaryEquityByClassOfStockTable_019e2ce7-9bf4-7840-8b97-226f3b58bdf8" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019e2ce7-9bf4-75d6-ac14-7a6d72c2d2b5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-75d6-ac14-7a6d72c2d2b5_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_019e2ce7-9bf4-75d6-ac14-7a6d72c2d2b5" xlink:to="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-75d6-ac14-7a6d72c2d2b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-72b3-81eb-39d517bd3b83" 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_019e2ce7-9bf4-75d6-ac14-7a6d72c2d2b5" xlink:to="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-72b3-81eb-39d517bd3b83" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019e2ce7-9bf4-7810-b201-d230a7f3ab87" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019e2ce7-9bf4-72b3-81eb-39d517bd3b83" xlink:to="loc_us-gaap_CommonStockMember_019e2ce7-9bf4-7810-b201-d230a7f3ab87" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_019e2ce7-9bf4-76fb-992b-7bfdbec212c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_019e2ce7-9bf4-75d1-a372-cba93e88feed" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_019e2ce7-9bf4-76fb-992b-7bfdbec212c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_019e2ce7-9bf4-79d4-9311-8e06c4a5b2b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_019e2ce7-9bf4-75d1-a372-cba93e88feed" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_019e2ce7-9bf4-79d4-9311-8e06c4a5b2b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019e2ce7-9bf4-7e3e-9aa7-b1589cf25580" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_019e2ce7-9bf4-75d1-a372-cba93e88feed" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019e2ce7-9bf4-7e3e-9aa7-b1589cf25580" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_StockIssuedDuringPeriodShareWarrantsExercised_019e2ce7-9bf4-7974-aec3-aa3a70057ff7" xlink:href="core-20260630.xsd#core_StockIssuedDuringPeriodShareWarrantsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_019e2ce7-9bf4-75d1-a372-cba93e88feed" xlink:to="loc_core_StockIssuedDuringPeriodShareWarrantsExercised_019e2ce7-9bf4-7974-aec3-aa3a70057ff7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromWarrantExercises_019e2ce7-9bf4-724f-8a8e-2b150c87cda9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromWarrantExercises"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_019e2ce7-9bf4-75d1-a372-cba93e88feed" xlink:to="loc_us-gaap_ProceedsFromWarrantExercises_019e2ce7-9bf4-724f-8a8e-2b150c87cda9" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/FAIRVALUEMEASUREMENTSScheduleofDerivativeAssetsandLiabilityMeasuredatFairValueonRecurringBasisDetails" xlink:type="simple" xlink:href="core-20260630.xsd#FAIRVALUEMEASUREMENTSScheduleofDerivativeAssetsandLiabilityMeasuredatFairValueonRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/FAIRVALUEMEASUREMENTSScheduleofDerivativeAssetsandLiabilityMeasuredatFairValueonRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-734e-a412-3a8d642c6452" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dc1-b6ba-d8ef2f8dffb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-734e-a412-3a8d642c6452" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dc1-b6ba-d8ef2f8dffb5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019e2ce7-9cc2-7b05-842b-69caa059be3e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dc1-b6ba-d8ef2f8dffb5" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019e2ce7-9cc2-7b05-842b-69caa059be3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-7b05-842b-69caa059be3e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019e2ce7-9cc2-7b05-842b-69caa059be3e" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-7b05-842b-69caa059be3e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-7158-ba18-4c5610d3d661" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019e2ce7-9cc2-7b05-842b-69caa059be3e" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-7158-ba18-4c5610d3d661" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_019e2ce7-9cc2-7055-a10f-1c0207043d96" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-7158-ba18-4c5610d3d661" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_019e2ce7-9cc2-7055-a10f-1c0207043d96" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e2ce7-9cc2-7e72-b7fa-c670fa97b6b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dc1-b6ba-d8ef2f8dffb5" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e2ce7-9cc2-7e72-b7fa-c670fa97b6b8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-7e72-b7fa-c670fa97b6b8_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_019e2ce7-9cc2-7e72-b7fa-c670fa97b6b8" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-7e72-b7fa-c670fa97b6b8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-75a7-af09-8b5a2bc5773a" 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_019e2ce7-9cc2-7e72-b7fa-c670fa97b6b8" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-75a7-af09-8b5a2bc5773a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019e2ce7-9cc2-7d90-8d2d-0a453e19ac3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-75a7-af09-8b5a2bc5773a" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019e2ce7-9cc2-7d90-8d2d-0a453e19ac3f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_019e2ce7-9cc2-78ed-b164-9c9ee79af415" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dc1-b6ba-d8ef2f8dffb5" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_019e2ce7-9cc2-78ed-b164-9c9ee79af415" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019e2ce7-9cc2-78ed-b164-9c9ee79af415_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_019e2ce7-9cc2-78ed-b164-9c9ee79af415" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019e2ce7-9cc2-78ed-b164-9c9ee79af415_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019e2ce7-9cc2-7c2a-b19a-95a8b803ecc4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_019e2ce7-9cc2-78ed-b164-9c9ee79af415" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019e2ce7-9cc2-7c2a-b19a-95a8b803ecc4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_019e2ce7-9cc2-7e5a-bf58-39035dcfd535" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019e2ce7-9cc2-7c2a-b19a-95a8b803ecc4" xlink:to="loc_us-gaap_MoneyMarketFundsMember_019e2ce7-9cc2-7e5a-bf58-39035dcfd535" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019e2ce7-9cc2-7d14-91c6-24e01a39054a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dc1-b6ba-d8ef2f8dffb5" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019e2ce7-9cc2-7d14-91c6-24e01a39054a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019e2ce7-9cc2-7d14-91c6-24e01a39054a_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_019e2ce7-9cc2-7d14-91c6-24e01a39054a" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019e2ce7-9cc2-7d14-91c6-24e01a39054a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019e2ce7-9cc2-788f-a1e1-ddf2ea47e300" 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_019e2ce7-9cc2-7d14-91c6-24e01a39054a" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019e2ce7-9cc2-788f-a1e1-ddf2ea47e300" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ContingentValueRightsMember_019e2ce7-9cc2-7608-82b2-17e1ef7b0fa4" xlink:href="core-20260630.xsd#core_ContingentValueRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019e2ce7-9cc2-788f-a1e1-ddf2ea47e300" xlink:to="loc_core_ContingentValueRightsMember_019e2ce7-9cc2-7608-82b2-17e1ef7b0fa4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantLiabilityMember_019e2ce7-9cc2-7280-8345-9b7abf91c89a" xlink:href="core-20260630.xsd#core_WarrantLiabilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019e2ce7-9cc2-788f-a1e1-ddf2ea47e300" xlink:to="loc_core_WarrantLiabilityMember_019e2ce7-9cc2-7280-8345-9b7abf91c89a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_019f2365-ca5b-79cb-8006-efadb1702652" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-734e-a412-3a8d642c6452" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_019f2365-ca5b-79cb-8006-efadb1702652" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019e2ce7-9cc2-7511-8d0c-5a7c00090d29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019f2365-ca5b-79cb-8006-efadb1702652" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019e2ce7-9cc2-7511-8d0c-5a7c00090d29" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetFairValue_019e2ce7-9cc2-7b78-b64b-cdb40d37b5fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CryptoAssetFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019f2365-ca5b-79cb-8006-efadb1702652" xlink:to="loc_us-gaap_CryptoAssetFairValue_019e2ce7-9cc2-7b78-b64b-cdb40d37b5fc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019e2ce7-9cc2-73c7-bcd4-84a11c32e3c3" 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_019f2365-ca5b-79cb-8006-efadb1702652" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_019e2ce7-9cc2-73c7-bcd4-84a11c32e3c3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019f2365-89e6-7f56-84b6-3529aa811424" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-734e-a412-3a8d642c6452" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019f2365-89e6-7f56-84b6-3529aa811424" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019e2ce7-9cc2-78f0-aacd-122649818ede" 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_019f2365-89e6-7f56-84b6-3529aa811424" xlink:to="loc_us-gaap_DerivativeLiabilities_019e2ce7-9cc2-78f0-aacd-122649818ede" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent_019e2ce7-9cc2-7e1d-a310-be5d18e049d7" 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_LiabilitiesFairValueDisclosureAbstract_019f2365-89e6-7f56-84b6-3529aa811424" xlink:to="loc_us-gaap_DerivativeLiabilitiesCurrent_019e2ce7-9cc2-7e1d-a310-be5d18e049d7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_019e2ce7-9cc2-7d74-8fc3-08cac5ec725b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_019f2365-89e6-7f56-84b6-3529aa811424" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_019e2ce7-9cc2-7d74-8fc3-08cac5ec725b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019e2ce7-9cc2-7fa2-b4e2-0a26e47da293" 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_019f2365-89e6-7f56-84b6-3529aa811424" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_019e2ce7-9cc2-7fa2-b4e2-0a26e47da293" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/FAIRVALUEMEASUREMENTSScheduleofFairValueofAssetsMeasuredonaNonrecurringBasisDetails" xlink:type="simple" xlink:href="core-20260630.xsd#FAIRVALUEMEASUREMENTSScheduleofFairValueofAssetsMeasuredonaNonrecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/FAIRVALUEMEASUREMENTSScheduleofFairValueofAssetsMeasuredonaNonrecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-72d9-886d-ef77f240aa1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dd8-9710-022d85f82c1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-72d9-886d-ef77f240aa1a" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dd8-9710-022d85f82c1e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e2ce7-9cc2-706e-b781-6696897d402d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dd8-9710-022d85f82c1e" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e2ce7-9cc2-706e-b781-6696897d402d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-706e-b781-6696897d402d_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_019e2ce7-9cc2-706e-b781-6696897d402d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-706e-b781-6696897d402d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-7701-9eed-e2cab5e803b0" 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_019e2ce7-9cc2-706e-b781-6696897d402d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-7701-9eed-e2cab5e803b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019e2ce7-9cc2-7387-ae9e-27959ee4a30c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-7701-9eed-e2cab5e803b0" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019e2ce7-9cc2-7387-ae9e-27959ee4a30c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019e2ce7-9cc2-7d35-b571-44dfe5f026f8" 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_019e2ce7-9cc2-7701-9eed-e2cab5e803b0" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019e2ce7-9cc2-7d35-b571-44dfe5f026f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019e2ce7-9cc2-7f0e-9653-f4ea52112b3b" 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_019e2ce7-9cc2-7701-9eed-e2cab5e803b0" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019e2ce7-9cc2-7f0e-9653-f4ea52112b3b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019e2ce7-9cc2-7c01-902a-95163b8f0dc1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-7dd8-9710-022d85f82c1e" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019e2ce7-9cc2-7c01-902a-95163b8f0dc1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-7c01-902a-95163b8f0dc1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019e2ce7-9cc2-7c01-902a-95163b8f0dc1" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-7c01-902a-95163b8f0dc1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-717c-9b74-f515cc89d3ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019e2ce7-9cc2-7c01-902a-95163b8f0dc1" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-717c-9b74-f515cc89d3ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019e2ce7-9cc2-7505-a371-663569eaa5c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019e2ce7-9cc2-717c-9b74-f515cc89d3ea" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019e2ce7-9cc2-7505-a371-663569eaa5c2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure_019f5bfe-cc42-7cba-ac06-5d18b38fcc97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-72d9-886d-ef77f240aa1a" xlink:to="loc_us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure_019f5bfe-cc42-7cba-ac06-5d18b38fcc97" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/FAIRVALUEMEASUREMENTSScheduleofCarryingAmountsandEstimatedFairValuesoftheConvertibleNotesDetails" xlink:type="simple" xlink:href="core-20260630.xsd#FAIRVALUEMEASUREMENTSScheduleofCarryingAmountsandEstimatedFairValuesoftheConvertibleNotesDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/FAIRVALUEMEASUREMENTSScheduleofCarryingAmountsandEstimatedFairValuesoftheConvertibleNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-7a7b-9c22-44732fc2c82f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-71f8-8962-f64b256e2024" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-7a7b-9c22-44732fc2c82f" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-71f8-8962-f64b256e2024" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e2ce7-9cc2-7c9a-9c2e-adc2dfa3744a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-71f8-8962-f64b256e2024" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e2ce7-9cc2-7c9a-9c2e-adc2dfa3744a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9cc2-7c9a-9c2e-adc2dfa3744a_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_019e2ce7-9cc2-7c9a-9c2e-adc2dfa3744a" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9cc2-7c9a-9c2e-adc2dfa3744a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9cc2-7d19-8bdc-fa1d5bd9378f" 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_019e2ce7-9cc2-7c9a-9c2e-adc2dfa3744a" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9cc2-7d19-8bdc-fa1d5bd9378f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_SeniorSecuredNotesDue2031Member_019f6298-3921-7500-8124-d988a070faf1" xlink:href="core-20260630.xsd#core_SeniorSecuredNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9cc2-7d19-8bdc-fa1d5bd9378f" xlink:to="loc_core_SeniorSecuredNotesDue2031Member_019f6298-3921-7500-8124-d988a070faf1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_A3.00ConvertibleSeniorNotesDue2029Member_019e2ce7-9cc2-7888-9e2e-0827474418e9" xlink:href="core-20260630.xsd#core_A3.00ConvertibleSeniorNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9cc2-7d19-8bdc-fa1d5bd9378f" xlink:to="loc_core_A3.00ConvertibleSeniorNotesDue2029Member_019e2ce7-9cc2-7888-9e2e-0827474418e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ConvertibleSeniorNotesDue2031Member_019e2ce7-9cc2-7960-a77b-f6affc5fcc05" xlink:href="core-20260630.xsd#core_ConvertibleSeniorNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e2ce7-9cc2-7d19-8bdc-fa1d5bd9378f" xlink:to="loc_core_ConvertibleSeniorNotesDue2031Member_019e2ce7-9cc2-7960-a77b-f6affc5fcc05" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e2ce7-9cc2-7ce1-b019-a49cbcfb8f45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-71f8-8962-f64b256e2024" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e2ce7-9cc2-7ce1-b019-a49cbcfb8f45" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9cc2-7ce1-b019-a49cbcfb8f45_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_019e2ce7-9cc2-7ce1-b019-a49cbcfb8f45" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9cc2-7ce1-b019-a49cbcfb8f45_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9cc2-799c-914e-ee44d381a247" 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_019e2ce7-9cc2-7ce1-b019-a49cbcfb8f45" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9cc2-799c-914e-ee44d381a247" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019f6298-3921-7ca5-9903-1213b3e18fbe" 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_019e2ce7-9cc2-799c-914e-ee44d381a247" xlink:to="loc_us-gaap_SeniorNotesMember_019f6298-3921-7ca5-9903-1213b3e18fbe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_019e2ce7-9cc2-7452-abc4-997b61d7a442" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e2ce7-9cc2-799c-914e-ee44d381a247" xlink:to="loc_us-gaap_ConvertibleDebtMember_019e2ce7-9cc2-7452-abc4-997b61d7a442" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e2ce7-9cc2-79ba-ac60-35a6d05f1f8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e2ce7-9cc2-71f8-8962-f64b256e2024" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e2ce7-9cc2-79ba-ac60-35a6d05f1f8e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-79ba-ac60-35a6d05f1f8e_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_019e2ce7-9cc2-79ba-ac60-35a6d05f1f8e" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-79ba-ac60-35a6d05f1f8e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-7882-b0af-ae6ad288fbc1" 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_019e2ce7-9cc2-79ba-ac60-35a6d05f1f8e" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-7882-b0af-ae6ad288fbc1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019f8a35-2d85-7b2f-ac77-2494816cd1a5" 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_019e2ce7-9cc2-7882-b0af-ae6ad288fbc1" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019f8a35-2d85-7b2f-ac77-2494816cd1a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019f6903-c5d3-7591-a503-4866aa2be65b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e2ce7-9cc2-7882-b0af-ae6ad288fbc1" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019f6903-c5d3-7591-a503-4866aa2be65b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e2ce7-9cc2-797d-824c-efcbf32948a9" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-7a7b-9c22-44732fc2c82f" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019e2ce7-9cc2-797d-824c-efcbf32948a9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtFairValueDisclosures_019e2ce7-9cc2-7f96-bb5d-fa2dd9aa2fc1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtFairValueDisclosures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e2ce7-9cc2-7a7b-9c22-44732fc2c82f" xlink:to="loc_us-gaap_ConvertibleDebtFairValueDisclosures_019e2ce7-9cc2-7f96-bb5d-fa2dd9aa2fc1" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/COMMITMENTSANDCONTINGENCIESDetails" xlink:type="simple" xlink:href="core-20260630.xsd#COMMITMENTSANDCONTINGENCIESDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/COMMITMENTSANDCONTINGENCIESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsTable_019f1d5c-7e12-740b-b9fb-2bf05a06d27a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_us-gaap_OtherCommitmentsTable_019f1d5c-7e12-740b-b9fb-2bf05a06d27a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019f1d5c-d173-7948-8bcb-27f92e455660" 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_OtherCommitmentsTable_019f1d5c-7e12-740b-b9fb-2bf05a06d27a" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019f1d5c-d173-7948-8bcb-27f92e455660" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1d5c-d173-7948-8bcb-27f92e455660_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_019f1d5c-d173-7948-8bcb-27f92e455660" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1d5c-d173-7948-8bcb-27f92e455660_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1d5c-d173-79a7-8f37-4ced8eb06e8b" 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_019f1d5c-d173-7948-8bcb-27f92e455660" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1d5c-d173-79a7-8f37-4ced8eb06e8b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_PolarisDSLLCMember_019f1d5c-ef38-7ace-9f25-0a70601097a2" xlink:href="core-20260630.xsd#core_PolarisDSLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1d5c-d173-79a7-8f37-4ced8eb06e8b" xlink:to="loc_core_PolarisDSLLCMember_019f1d5c-ef38-7ace-9f25-0a70601097a2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_019f2394-2a55-7b83-800e-588b40276bd1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_019f1d5c-7e12-740b-b9fb-2bf05a06d27a" xlink:to="loc_srt_LitigationCaseAxis_019f2394-2a55-7b83-800e-588b40276bd1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_019f2394-2a55-7b83-800e-588b40276bd1_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_019f2394-2a55-7b83-800e-588b40276bd1" xlink:to="loc_srt_LitigationCaseTypeDomain_019f2394-2a55-7b83-800e-588b40276bd1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_019f2394-2a55-798c-ad22-00ed4d5e8474" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_019f2394-2a55-7b83-800e-588b40276bd1" xlink:to="loc_srt_LitigationCaseTypeDomain_019f2394-2a55-798c-ad22-00ed4d5e8474" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ShareholderClassActionIhleMember_019f2394-7752-7afe-b1b3-7088c54e1c7a" xlink:href="core-20260630.xsd#core_ShareholderClassActionIhleMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_019f2394-2a55-798c-ad22-00ed4d5e8474" xlink:to="loc_core_ShareholderClassActionIhleMember_019f2394-7752-7afe-b1b3-7088c54e1c7a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted_019e2ce7-9cc2-7328-93dd-0a9b97e4edc5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted_019e2ce7-9cc2-7328-93dd-0a9b97e4edc5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_PurchaseCommitmentInvoiceAmount_019e2ce7-9cc2-7c2b-a640-55b28e2f9364" xlink:href="core-20260630.xsd#core_PurchaseCommitmentInvoiceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_core_PurchaseCommitmentInvoiceAmount_019e2ce7-9cc2-7c2b-a640-55b28e2f9364" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_PurchaseCommitmentExpectedCapitalExpendituresPeriod_019e2ce7-9cc2-7c7b-a55a-f56ffb377801" xlink:href="core-20260630.xsd#core_PurchaseCommitmentExpectedCapitalExpendituresPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_core_PurchaseCommitmentExpectedCapitalExpendituresPeriod_019e2ce7-9cc2-7c7b-a55a-f56ffb377801" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_BusinessCombinationAreaOfLandOwned_019f1d5c-7e12-74c3-a1bc-c16982a403ba" xlink:href="core-20260630.xsd#core_BusinessCombinationAreaOfLandOwned"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_core_BusinessCombinationAreaOfLandOwned_019f1d5c-7e12-74c3-a1bc-c16982a403ba" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_BusinessCombinationGrossUtilityPowerCapacity_019f1d5d-a4e2-7470-ac38-9f9e46100dfd" xlink:href="core-20260630.xsd#core_BusinessCombinationGrossUtilityPowerCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_core_BusinessCombinationGrossUtilityPowerCapacity_019f1d5d-a4e2-7470-ac38-9f9e46100dfd" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationPriceOfAcquisitionExpected_019f1d5e-0918-7296-a28b-50b1b2b03b9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationPriceOfAcquisitionExpected"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_us-gaap_BusinessCombinationPriceOfAcquisitionExpected_019f1d5e-0918-7296-a28b-50b1b2b03b9c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_BusinessCombinationPriceOfAcquisitionExpectedAdditionalContingentCash_019f705d-fccd-7508-bf99-4b76696b66d9" xlink:href="core-20260630.xsd#core_BusinessCombinationPriceOfAcquisitionExpectedAdditionalContingentCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_core_BusinessCombinationPriceOfAcquisitionExpectedAdditionalContingentCash_019f705d-fccd-7508-bf99-4b76696b66d9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_BusinessCombinationAdditionalGrossUtilityPowerCapacity_019f7059-e1df-7bd5-ac5f-be452693b7d8" xlink:href="core-20260630.xsd#core_BusinessCombinationAdditionalGrossUtilityPowerCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_core_BusinessCombinationAdditionalGrossUtilityPowerCapacity_019f7059-e1df-7bd5-ac5f-be452693b7d8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_019f7fb1-f7a6-733f-ae7e-e36791c02320" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_us-gaap_RestrictedCashCurrent_019f7fb1-f7a6-733f-ae7e-e36791c02320" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnContractTermination_019f5ac3-0df6-725d-8ea2-f0a3e40b5e9d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnContractTermination"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_us-gaap_GainLossOnContractTermination_019f5ac3-0df6-725d-8ea2-f0a3e40b5e9d" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForLegalSettlements_019f1d65-fb22-730d-b488-15558a87fead" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForLegalSettlements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f1d5c-7e12-7178-98b1-f6ef28eae699" xlink:to="loc_us-gaap_PaymentsForLegalSettlements_019f1d65-fb22-730d-b488-15558a87fead" xlink:type="arc" order="10"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONNarrativeDetails" xlink:type="simple" xlink:href="core-20260630.xsd#STOCKBASEDCOMPENSATIONNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-72e7-a3b2-fd7d8b4d8e85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-7d0b-8ab6-be7a7613b0a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-72e7-a3b2-fd7d8b4d8e85" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-7d0b-8ab6-be7a7613b0a1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019e2ce7-9cc2-7362-ab3d-61867107812d" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-7d0b-8ab6-be7a7613b0a1" xlink:to="loc_us-gaap_AwardTypeAxis_019e2ce7-9cc2-7362-ab3d-61867107812d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7362-ab3d-61867107812d_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_019e2ce7-9cc2-7362-ab3d-61867107812d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7362-ab3d-61867107812d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7bff-b13f-50dc83d4534c" 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_019e2ce7-9cc2-7362-ab3d-61867107812d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7bff-b13f-50dc83d4534c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019e2ce7-9cc2-759b-855e-8936f513786e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7bff-b13f-50dc83d4534c" xlink:to="loc_us-gaap_PerformanceSharesMember_019e2ce7-9cc2-759b-855e-8936f513786e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019f1d7d-b686-77fc-b454-6b351e6c9c4f" 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_019e2ce7-9cc2-7bff-b13f-50dc83d4534c" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019f1d7d-b686-77fc-b454-6b351e6c9c4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_RestrictedStockUnitsMarketConditionMember_019f5bd5-0bcd-7afd-aee0-21ff9e732179" xlink:href="core-20260630.xsd#core_RestrictedStockUnitsMarketConditionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7bff-b13f-50dc83d4534c" xlink:to="loc_core_RestrictedStockUnitsMarketConditionMember_019f5bd5-0bcd-7afd-aee0-21ff9e732179" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019e2ce7-9cc2-7561-a8a3-feef3e01c8da" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-7d0b-8ab6-be7a7613b0a1" xlink:to="loc_srt_RangeAxis_019e2ce7-9cc2-7561-a8a3-feef3e01c8da" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e2ce7-9cc2-7561-a8a3-feef3e01c8da_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_019e2ce7-9cc2-7561-a8a3-feef3e01c8da" xlink:to="loc_srt_RangeMember_019e2ce7-9cc2-7561-a8a3-feef3e01c8da_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e2ce7-9cc2-7f9d-bfef-f34d2f9e064b" 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_019e2ce7-9cc2-7561-a8a3-feef3e01c8da" xlink:to="loc_srt_RangeMember_019e2ce7-9cc2-7f9d-bfef-f34d2f9e064b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019e2ce7-9cc2-76a8-9394-19df6636216e" 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_019e2ce7-9cc2-7f9d-bfef-f34d2f9e064b" xlink:to="loc_srt_MinimumMember_019e2ce7-9cc2-76a8-9394-19df6636216e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019e2ce7-9cc2-7a5b-87ab-881d50f581d4" 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_019e2ce7-9cc2-7f9d-bfef-f34d2f9e064b" xlink:to="loc_srt_MaximumMember_019e2ce7-9cc2-7a5b-87ab-881d50f581d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_019f1d7c-2528-7bca-8543-d9c4a925b9f8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-7d0b-8ab6-be7a7613b0a1" xlink:to="loc_srt_TitleOfIndividualAxis_019f1d7c-2528-7bca-8543-d9c4a925b9f8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f1d7c-2528-7bca-8543-d9c4a925b9f8_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_019f1d7c-2528-7bca-8543-d9c4a925b9f8" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f1d7c-2528-7bca-8543-d9c4a925b9f8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f1d7c-2528-754d-a722-29dca12722ed" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_019f1d7c-2528-7bca-8543-d9c4a925b9f8" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f1d7c-2528-754d-a722-29dca12722ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefExecutiveOfficerMember_019f1d7c-4bb9-79e4-b2ab-68341778cff7" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ChiefExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f1d7c-2528-754d-a722-29dca12722ed" xlink:to="loc_srt_ChiefExecutiveOfficerMember_019f1d7c-4bb9-79e4-b2ab-68341778cff7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingInstallments_019e2ce7-9cc2-7059-a8a3-db24cedaefcf" xlink:href="core-20260630.xsd#core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingInstallments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-72e7-a3b2-fd7d8b4d8e85" xlink:to="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingInstallments_019e2ce7-9cc2-7059-a8a3-db24cedaefcf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingTargetPercentage_019e2ce7-9cc2-7143-91fc-dfe86a59f305" xlink:href="core-20260630.xsd#core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingTargetPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-72e7-a3b2-fd7d8b4d8e85" xlink:to="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingTargetPercentage_019e2ce7-9cc2-7143-91fc-dfe86a59f305" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019f1d7d-6b6a-725e-afb4-6eb5acbb937f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-72e7-a3b2-fd7d8b4d8e85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019f1d7d-6b6a-725e-afb4-6eb5acbb937f" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofShareBasedPaymentAwardPerformanceSharesValuationAssumptionsDetails" xlink:type="simple" xlink:href="core-20260630.xsd#STOCKBASEDCOMPENSATIONScheduleofShareBasedPaymentAwardPerformanceSharesValuationAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofShareBasedPaymentAwardPerformanceSharesValuationAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f479c-618d-717a-8882-f107aff95ad9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f479c-618d-7005-8b7b-ac26ad0d44cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f479c-618d-717a-8882-f107aff95ad9" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f479c-618d-7005-8b7b-ac26ad0d44cd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019f479c-618d-75ef-9d74-784c78d1d79e" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f479c-618d-7005-8b7b-ac26ad0d44cd" xlink:to="loc_us-gaap_AwardTypeAxis_019f479c-618d-75ef-9d74-784c78d1d79e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f479c-618d-75ef-9d74-784c78d1d79e_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_019f479c-618d-75ef-9d74-784c78d1d79e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f479c-618d-75ef-9d74-784c78d1d79e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f479c-618d-7e1d-8829-d25b5d7ccc8f" 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_019f479c-618d-75ef-9d74-784c78d1d79e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f479c-618d-7e1d-8829-d25b5d7ccc8f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019f479d-8f7c-7869-8b96-3a14f118cb0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f479c-618d-7e1d-8829-d25b5d7ccc8f" xlink:to="loc_us-gaap_PerformanceSharesMember_019f479d-8f7c-7869-8b96-3a14f118cb0a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_019f479c-618d-7749-bd5d-c9df3a90616d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f479c-618d-717a-8882-f107aff95ad9" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_019f479c-618d-7749-bd5d-c9df3a90616d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_019f479f-86a5-775f-bb31-9f546651f375" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f479c-618d-717a-8882-f107aff95ad9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_019f479f-86a5-775f-bb31-9f546651f375" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_019f479e-0ae6-7d30-9519-67d19ca5fea2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f479c-618d-717a-8882-f107aff95ad9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_019f479e-0ae6-7d30-9519-67d19ca5fea2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_019f479e-3497-75de-86c9-d8f4970e59f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f479c-618d-717a-8882-f107aff95ad9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_019f479e-3497-75de-86c9-d8f4970e59f9" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofRestrictedStockUnitsActivityDetails" xlink:type="simple" xlink:href="core-20260630.xsd#STOCKBASEDCOMPENSATIONScheduleofRestrictedStockUnitsActivityDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofRestrictedStockUnitsActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7c25-b8b1-80a37ce32b24" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-72c2-8e8e-031557af9217" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7c25-b8b1-80a37ce32b24" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-72c2-8e8e-031557af9217" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019e2ce7-9cc2-7f2c-b682-e33b9098086b" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-72c2-8e8e-031557af9217" xlink:to="loc_us-gaap_AwardTypeAxis_019e2ce7-9cc2-7f2c-b682-e33b9098086b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7f2c-b682-e33b9098086b_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_019e2ce7-9cc2-7f2c-b682-e33b9098086b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7f2c-b682-e33b9098086b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7ae4-869e-dd8072ed31e5" 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_019e2ce7-9cc2-7f2c-b682-e33b9098086b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7ae4-869e-dd8072ed31e5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019e2ce7-9cc2-7b28-b247-129467b2f4b3" 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_019e2ce7-9cc2-7ae4-869e-dd8072ed31e5" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019e2ce7-9cc2-7b28-b247-129467b2f4b3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_RestrictedStockUnitsMarketConditionMember_019e2ce7-9cc2-7643-b048-8952cfd1b3e6" xlink:href="core-20260630.xsd#core_RestrictedStockUnitsMarketConditionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7ae4-869e-dd8072ed31e5" xlink:to="loc_core_RestrictedStockUnitsMarketConditionMember_019e2ce7-9cc2-7643-b048-8952cfd1b3e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_PerformanceRestrictedStockUnitsMember_019e2ce7-9cc2-782f-835d-9a2b20b8eb9e" xlink:href="core-20260630.xsd#core_PerformanceRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7ae4-869e-dd8072ed31e5" xlink:to="loc_core_PerformanceRestrictedStockUnitsMember_019e2ce7-9cc2-782f-835d-9a2b20b8eb9e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019f4798-ed83-7b29-9b1c-018f8ed739ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7ae4-869e-dd8072ed31e5" xlink:to="loc_us-gaap_PerformanceSharesMember_019f4798-ed83-7b29-9b1c-018f8ed739ed" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f4798-ed83-7f2e-a45f-fa98fca35e3f" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-72c2-8e8e-031557af9217" xlink:to="loc_srt_RangeAxis_019f4798-ed83-7f2e-a45f-fa98fca35e3f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f4798-ed83-7f2e-a45f-fa98fca35e3f_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_019f4798-ed83-7f2e-a45f-fa98fca35e3f" xlink:to="loc_srt_RangeMember_019f4798-ed83-7f2e-a45f-fa98fca35e3f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f4798-ed83-75b6-a2f1-7f1c29226d37" 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_019f4798-ed83-7f2e-a45f-fa98fca35e3f" xlink:to="loc_srt_RangeMember_019f4798-ed83-75b6-a2f1-7f1c29226d37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019f5ef6-ef08-71c2-82ec-302bcebdef33" 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_019f4798-ed83-75b6-a2f1-7f1c29226d37" xlink:to="loc_srt_MinimumMember_019f5ef6-ef08-71c2-82ec-302bcebdef33" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019f4798-ed83-7721-9d38-4e3d08a8c40c" 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_019f4798-ed83-75b6-a2f1-7f1c29226d37" xlink:to="loc_srt_MaximumMember_019f4798-ed83-7721-9d38-4e3d08a8c40c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019e2ce7-9cc2-7596-ab78-e339dca527c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7c25-b8b1-80a37ce32b24" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019e2ce7-9cc2-7596-ab78-e339dca527c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019e2ce7-9cc2-7709-9c14-0e865e642cca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019e2ce7-9cc2-7596-ab78-e339dca527c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019e2ce7-9cc2-7709-9c14-0e865e642cca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019e2ce7-9cc2-7dcb-85ed-5e3cdb20bb84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019e2ce7-9cc2-7596-ab78-e339dca527c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019e2ce7-9cc2-7dcb-85ed-5e3cdb20bb84" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment_019e2ce7-9cc2-7bbf-89ef-0e093c695aaa" xlink:href="core-20260630.xsd#core_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019e2ce7-9cc2-7596-ab78-e339dca527c5" xlink:to="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment_019e2ce7-9cc2-7bbf-89ef-0e093c695aaa" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019e2ce7-9cc2-7700-8908-c2291f8ce4e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019e2ce7-9cc2-7596-ab78-e339dca527c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019e2ce7-9cc2-7700-8908-c2291f8ce4e5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019e2ce7-9cc2-7393-8263-fa21d35c198f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019e2ce7-9cc2-7596-ab78-e339dca527c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019e2ce7-9cc2-7393-8263-fa21d35c198f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019e2ce7-9cc2-77fe-81f2-8f1bbcbceac4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019e2ce7-9cc2-727f-9921-609cd371c636" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7c25-b8b1-80a37ce32b24" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019e2ce7-9cc2-727f-9921-609cd371c636" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019e2ce7-9cc2-7b59-b725-335c3f00f99a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019e2ce7-9cc2-727f-9921-609cd371c636" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019e2ce7-9cc2-7b59-b725-335c3f00f99a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019e2ce7-9cc2-7823-ae73-74e686985f79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019e2ce7-9cc2-727f-9921-609cd371c636" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019e2ce7-9cc2-7823-ae73-74e686985f79" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue_019e2ce7-9cc2-73c4-b214-4264f1dd4e55" xlink:href="core-20260630.xsd#core_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019e2ce7-9cc2-727f-9921-609cd371c636" xlink:to="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue_019e2ce7-9cc2-73c4-b214-4264f1dd4e55" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019e2ce7-9cc2-7365-87d3-2dec7cefa258" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019e2ce7-9cc2-727f-9921-609cd371c636" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019e2ce7-9cc2-7365-87d3-2dec7cefa258" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019e2ce7-9cc2-78f7-8564-ae185b003db9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019e2ce7-9cc2-727f-9921-609cd371c636" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019e2ce7-9cc2-78f7-8564-ae185b003db9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019e2ce7-9cc2-7666-bcd0-6b8a0a212d33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingTargetPercentage_019f4798-ed83-7151-b8fd-83acd8b5c015" xlink:href="core-20260630.xsd#core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingTargetPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7c25-b8b1-80a37ce32b24" xlink:to="loc_core_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingTargetPercentage_019f4798-ed83-7151-b8fd-83acd8b5c015" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofUnrecognizedCompensationCostAndWeightedAveragePeriodForRecognitionDetails" xlink:type="simple" xlink:href="core-20260630.xsd#STOCKBASEDCOMPENSATIONScheduleofUnrecognizedCompensationCostAndWeightedAveragePeriodForRecognitionDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofUnrecognizedCompensationCostAndWeightedAveragePeriodForRecognitionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7dde-82be-15385438193b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-7f51-aa4b-273098462c00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7dde-82be-15385438193b" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-7f51-aa4b-273098462c00" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019e2ce7-9cc2-75e0-b037-26c7db5acaf4" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-7f51-aa4b-273098462c00" xlink:to="loc_us-gaap_AwardTypeAxis_019e2ce7-9cc2-75e0-b037-26c7db5acaf4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-75e0-b037-26c7db5acaf4_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_019e2ce7-9cc2-75e0-b037-26c7db5acaf4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-75e0-b037-26c7db5acaf4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7f02-b4b9-2c06bd2e7b5a" 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_019e2ce7-9cc2-75e0-b037-26c7db5acaf4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7f02-b4b9-2c06bd2e7b5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019e2ce7-9cc2-7c3f-9d05-50e66e92b42e" 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_019e2ce7-9cc2-7f02-b4b9-2c06bd2e7b5a" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019e2ce7-9cc2-7c3f-9d05-50e66e92b42e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019e2ce7-9cc2-7ec0-9e4a-e1ce55d7b082" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7f02-b4b9-2c06bd2e7b5a" xlink:to="loc_us-gaap_PerformanceSharesMember_019e2ce7-9cc2-7ec0-9e4a-e1ce55d7b082" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_RestrictedStockUnitsMarketConditionMember_019e2ce7-9cc2-7b2d-b105-7a6c47d63173" xlink:href="core-20260630.xsd#core_RestrictedStockUnitsMarketConditionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019e2ce7-9cc2-7f02-b4b9-2c06bd2e7b5a" xlink:to="loc_core_RestrictedStockUnitsMarketConditionMember_019e2ce7-9cc2-7b2d-b105-7a6c47d63173" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_019e2ce7-9cc2-797f-a259-f795f9c1023d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7dde-82be-15385438193b" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_019e2ce7-9cc2-797f-a259-f795f9c1023d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019e2ce7-9cc2-72b7-9f0d-a8c8d7b026d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7dde-82be-15385438193b" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019e2ce7-9cc2-72b7-9f0d-a8c8d7b026d6" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofSharebasedCompensationArrangementsbySharebasedPaymentAwardDetails" xlink:type="simple" xlink:href="core-20260630.xsd#STOCKBASEDCOMPENSATIONScheduleofSharebasedCompensationArrangementsbySharebasedPaymentAwardDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofSharebasedCompensationArrangementsbySharebasedPaymentAwardDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-79e7-b5e2-ad0bfe8cbcf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-79e7-b5e2-ad0bfe8cbcf4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019e2ce7-9cc2-74b6-b740-edaa45f81242" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-79e7-b5e2-ad0bfe8cbcf4" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019e2ce7-9cc2-74b6-b740-edaa45f81242" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e2ce7-9cc2-776e-8fcc-77d82088a3f1" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e2ce7-9cc2-776e-8fcc-77d82088a3f1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_019e2ce7-9cc2-7aa2-a4f4-5889bfdca203" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_019e2ce7-9cc2-7aa2-a4f4-5889bfdca203" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1_019e2ce7-9cc2-7adf-8189-7757e7a58046" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1_019e2ce7-9cc2-7adf-8189-7757e7a58046" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_019f5ef7-b037-7f26-95c3-20afbffc5527" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_019f5ef7-b037-7f26-95c3-20afbffc5527" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofSharebasedCompensationArrangementsbySharebasedPaymentAwardDetails_1" xlink:type="simple" xlink:href="core-20260630.xsd#STOCKBASEDCOMPENSATIONScheduleofSharebasedCompensationArrangementsbySharebasedPaymentAwardDetails_1"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/STOCKBASEDCOMPENSATIONScheduleofSharebasedCompensationArrangementsbySharebasedPaymentAwardDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-79e7-b5e2-ad0bfe8cbcf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019e2ce7-9cc2-79e7-b5e2-ad0bfe8cbcf4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e2ce7-9cc2-776e-8fcc-77d82088a3f1" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e2ce7-9cc2-776e-8fcc-77d82088a3f1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_019e2ce7-9cc2-7aa2-a4f4-5889bfdca203" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_019e2ce7-9cc2-7aa2-a4f4-5889bfdca203" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1_019e2ce7-9cc2-7adf-8189-7757e7a58046" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1_019e2ce7-9cc2-7adf-8189-7757e7a58046" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_019f5ef7-b037-7f26-95c3-20afbffc5527" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019e2ce7-9cc2-7eb5-a0c6-891eb186ed13" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_019f5ef7-b037-7f26-95c3-20afbffc5527" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/NETLOSSPERSHARENarrativeDetails" xlink:type="simple" xlink:href="core-20260630.xsd#NETLOSSPERSHARENarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/NETLOSSPERSHARENarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019e2ce7-9cc2-77a7-a8f7-89572e878c1a" 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_019e2ce7-9cc2-7993-ad0e-d1949986f4ef" 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_019e2ce7-9cc2-77a7-a8f7-89572e878c1a" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019e2ce7-9cc2-7993-ad0e-d1949986f4ef" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019e2ce7-9cc2-7537-8258-5a3c20adf9eb" 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_019e2ce7-9cc2-7993-ad0e-d1949986f4ef" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019e2ce7-9cc2-7537-8258-5a3c20adf9eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-7537-8258-5a3c20adf9eb_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_019e2ce7-9cc2-7537-8258-5a3c20adf9eb" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-7537-8258-5a3c20adf9eb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-7966-bae6-a152586dc364" 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_019e2ce7-9cc2-7537-8258-5a3c20adf9eb" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-7966-bae6-a152586dc364" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_Tranche2WarrantsMember_019e2ce7-9cc2-7dd7-aaf6-f2534b0fed38" xlink:href="core-20260630.xsd#core_Tranche2WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-7966-bae6-a152586dc364" xlink:to="loc_core_Tranche2WarrantsMember_019e2ce7-9cc2-7dd7-aaf6-f2534b0fed38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesContingentlyIssuable_019e2ce7-9cc2-765f-b94c-7a539457f078" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesContingentlyIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019e2ce7-9cc2-77a7-a8f7-89572e878c1a" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesContingentlyIssuable_019e2ce7-9cc2-765f-b94c-7a539457f078" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/NETLOSSPERSHAREScheduleofEarningsPerShareBasicandDilutedDetails" xlink:type="simple" xlink:href="core-20260630.xsd#NETLOSSPERSHAREScheduleofEarningsPerShareBasicandDilutedDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/NETLOSSPERSHAREScheduleofEarningsPerShareBasicandDilutedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDilutedLineItems_019e2ce7-9cc2-774c-84de-c27575af8c3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDilutedLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019e2ce7-9cc2-7485-a361-f7b2e3a17310" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019e2ce7-9cc2-774c-84de-c27575af8c3f" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019e2ce7-9cc2-7485-a361-f7b2e3a17310" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019e2ce7-9cc2-7b94-903f-bc37a6b78778" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019e2ce7-9cc2-7485-a361-f7b2e3a17310" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019e2ce7-9cc2-7b94-903f-bc37a6b78778" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9cc2-7b94-903f-bc37a6b78778_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019e2ce7-9cc2-7b94-903f-bc37a6b78778" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9cc2-7b94-903f-bc37a6b78778_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9cc2-7b87-8c15-4c673ddedda5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019e2ce7-9cc2-7b94-903f-bc37a6b78778" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9cc2-7b87-8c15-4c673ddedda5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantTranche2Member_019e2ce7-9cc2-7e3b-8514-d66491a3fe05" xlink:href="core-20260630.xsd#core_WarrantTranche2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019e2ce7-9cc2-7b87-8c15-4c673ddedda5" xlink:to="loc_core_WarrantTranche2Member_019e2ce7-9cc2-7e3b-8514-d66491a3fe05" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAbstract_019e2ce7-9cc2-7072-81ea-ecba0f3e28ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019e2ce7-9cc2-774c-84de-c27575af8c3f" xlink:to="loc_us-gaap_NetIncomeLossAbstract_019e2ce7-9cc2-7072-81ea-ecba0f3e28ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2ce7-9cc2-7ed3-9628-000f7956c87e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_019e2ce7-9cc2-7072-81ea-ecba0f3e28ab" xlink:to="loc_us-gaap_NetIncomeLoss_019e2ce7-9cc2-7ed3-9628-000f7956c87e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_019e2ce7-9cc2-7bf0-8ade-81e7fedff168" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_019e2ce7-9cc2-7072-81ea-ecba0f3e28ab" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_019e2ce7-9cc2-7bf0-8ade-81e7fedff168" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e2ce7-9cc2-7d47-a1d5-99935d3bcdcc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_019e2ce7-9cc2-7072-81ea-ecba0f3e28ab" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e2ce7-9cc2-7d47-a1d5-99935d3bcdcc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e2ce7-9cc2-73fe-9224-8ca219aa9cc2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_019e2ce7-9cc2-7072-81ea-ecba0f3e28ab" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e2ce7-9cc2-73fe-9224-8ca219aa9cc2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_019e2ce7-9cc2-79df-9e5e-1179cff26050" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019e2ce7-9cc2-774c-84de-c27575af8c3f" xlink:to="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_019e2ce7-9cc2-79df-9e5e-1179cff26050" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2ce7-9cc2-7469-a9fd-c2137ee560ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_019e2ce7-9cc2-79df-9e5e-1179cff26050" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2ce7-9cc2-7469-a9fd-c2137ee560ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2ce7-9cc2-77fc-93b7-efe2a8254920" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_019e2ce7-9cc2-79df-9e5e-1179cff26050" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2ce7-9cc2-77fc-93b7-efe2a8254920" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019e2ce7-9cc2-78ec-b908-903c34b8971e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_019e2ce7-9cc2-79df-9e5e-1179cff26050" xlink:to="loc_us-gaap_EarningsPerShareBasic_019e2ce7-9cc2-78ec-b908-903c34b8971e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019e2ce7-9cc2-794e-861f-2f8f45b32b9d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_019e2ce7-9cc2-79df-9e5e-1179cff26050" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019e2ce7-9cc2-794e-861f-2f8f45b32b9d" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsLossPerShareDetails" xlink:type="simple" xlink:href="core-20260630.xsd#NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsLossPerShareDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019e2ce7-9cc2-77a1-b99c-f916d98300ef" 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_019e2ce7-9cc2-79ab-8af2-58776b69cea3" 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_019e2ce7-9cc2-77a1-b99c-f916d98300ef" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019e2ce7-9cc2-79ab-8af2-58776b69cea3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019e2ce7-9cc2-74cc-a16d-b85c7269a1ba" 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_019e2ce7-9cc2-79ab-8af2-58776b69cea3" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019e2ce7-9cc2-74cc-a16d-b85c7269a1ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-74cc-a16d-b85c7269a1ba_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_019e2ce7-9cc2-74cc-a16d-b85c7269a1ba" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-74cc-a16d-b85c7269a1ba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-72d0-b784-be5058d4403b" 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_019e2ce7-9cc2-74cc-a16d-b85c7269a1ba" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-72d0-b784-be5058d4403b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_019e2ce7-9cc2-7b19-bf6b-204726d7539a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-72d0-b784-be5058d4403b" xlink:to="loc_us-gaap_ConvertibleDebtMember_019e2ce7-9cc2-7b19-bf6b-204726d7539a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_RestrictedStockUnitsRSUsPerformanceSharesAndRestrictedStockUnitsMarketConditionMember_019e2ce7-9cc2-7408-8f5c-66c3968958ba" xlink:href="core-20260630.xsd#core_RestrictedStockUnitsRSUsPerformanceSharesAndRestrictedStockUnitsMarketConditionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-72d0-b784-be5058d4403b" xlink:to="loc_core_RestrictedStockUnitsRSUsPerformanceSharesAndRestrictedStockUnitsMarketConditionMember_019e2ce7-9cc2-7408-8f5c-66c3968958ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_019e2ce7-9cc2-7e9b-978d-4f62cbb00182" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-72d0-b784-be5058d4403b" xlink:to="loc_us-gaap_EmployeeStockOptionMember_019e2ce7-9cc2-7e9b-978d-4f62cbb00182" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantTranche1Member_019e2ce7-9cc2-79cd-8ab4-9e0cb004b77e" xlink:href="core-20260630.xsd#core_WarrantTranche1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019e2ce7-9cc2-72d0-b784-be5058d4403b" xlink:to="loc_core_WarrantTranche1Member_019e2ce7-9cc2-79cd-8ab4-9e0cb004b77e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019e2ce7-9cc2-74a1-b800-36f14bd6a213" 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_019e2ce7-9cc2-77a1-b99c-f916d98300ef" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019e2ce7-9cc2-74a1-b800-36f14bd6a213" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/SEGMENTREPORTINGNarrativeDetails" xlink:type="simple" xlink:href="core-20260630.xsd#SEGMENTREPORTINGNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/SEGMENTREPORTINGNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-73be-aa0c-0db4881b8ac4" 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_019e2ce7-9cc2-7b72-9da4-f8612bebfcab" 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_019e2ce7-9cc2-73be-aa0c-0db4881b8ac4" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019e2ce7-9cc2-7b72-9da4-f8612bebfcab" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e2ce7-9cc2-7d1e-8405-20e8a248d6ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019e2ce7-9cc2-7b72-9da4-f8612bebfcab" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e2ce7-9cc2-7d1e-8405-20e8a248d6ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e2ce7-9cc2-7d1e-8405-20e8a248d6ff_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e2ce7-9cc2-7d1e-8405-20e8a248d6ff" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e2ce7-9cc2-7d1e-8405-20e8a248d6ff_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e2ce7-9cc2-7727-b792-0bbd46c14175" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e2ce7-9cc2-7d1e-8405-20e8a248d6ff" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e2ce7-9cc2-7727-b792-0bbd46c14175" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerSegmentBenchmarkMember_019e2ce7-9cc2-761f-8279-67a56c8e6ba9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerSegmentBenchmarkMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e2ce7-9cc2-7727-b792-0bbd46c14175" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerSegmentBenchmarkMember_019e2ce7-9cc2-761f-8279-67a56c8e6ba9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019e2ce7-9cc2-7934-ade2-3ea474b6f220" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019e2ce7-9cc2-7b72-9da4-f8612bebfcab" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019e2ce7-9cc2-7934-ade2-3ea474b6f220" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019e2ce7-9cc2-7934-ade2-3ea474b6f220_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019e2ce7-9cc2-7934-ade2-3ea474b6f220" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019e2ce7-9cc2-7934-ade2-3ea474b6f220_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019e2ce7-9cc2-75f1-8cf6-2dffafb76ec7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019e2ce7-9cc2-7934-ade2-3ea474b6f220" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019e2ce7-9cc2-75f1-8cf6-2dffafb76ec7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_019e2ce7-9cc2-7480-8545-1947e6adeb44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019e2ce7-9cc2-75f1-8cf6-2dffafb76ec7" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_019e2ce7-9cc2-7480-8545-1947e6adeb44" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_019e2ce7-9cc2-72b8-80e1-6d5f917a67e4" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019e2ce7-9cc2-7b72-9da4-f8612bebfcab" xlink:to="loc_srt_MajorCustomersAxis_019e2ce7-9cc2-72b8-80e1-6d5f917a67e4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019e2ce7-9cc2-72b8-80e1-6d5f917a67e4_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_019e2ce7-9cc2-72b8-80e1-6d5f917a67e4" xlink:to="loc_srt_NameOfMajorCustomerDomain_019e2ce7-9cc2-72b8-80e1-6d5f917a67e4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019e2ce7-9cc2-742d-b126-3279571e0c92" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_019e2ce7-9cc2-72b8-80e1-6d5f917a67e4" xlink:to="loc_srt_NameOfMajorCustomerDomain_019e2ce7-9cc2-742d-b126-3279571e0c92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_OneCustomerMember_019e2ce7-9cc2-783a-be53-fad8041199b7" xlink:href="core-20260630.xsd#core_OneCustomerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019e2ce7-9cc2-742d-b126-3279571e0c92" xlink:to="loc_core_OneCustomerMember_019e2ce7-9cc2-783a-be53-fad8041199b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019e2ce7-9cc2-7608-8dd4-3d51bec1066e" 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_019e2ce7-9cc2-7b72-9da4-f8612bebfcab" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019e2ce7-9cc2-7608-8dd4-3d51bec1066e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-7608-8dd4-3d51bec1066e_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_019e2ce7-9cc2-7608-8dd4-3d51bec1066e" xlink:to="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-7608-8dd4-3d51bec1066e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-796d-acfa-b86e02dce9e6" 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_019e2ce7-9cc2-7608-8dd4-3d51bec1066e" xlink:to="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-796d-acfa-b86e02dce9e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetSelfMiningSegmentMember_019e2ce7-9cc2-77aa-8a3c-f0018f72b48f" xlink:href="core-20260630.xsd#core_DigitalAssetSelfMiningSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-796d-acfa-b86e02dce9e6" xlink:to="loc_core_DigitalAssetSelfMiningSegmentMember_019e2ce7-9cc2-77aa-8a3c-f0018f72b48f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ColocationSegmentMember_019e2ce7-9cc2-7160-92e1-8e471cb477c1" xlink:href="core-20260630.xsd#core_ColocationSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-796d-acfa-b86e02dce9e6" xlink:to="loc_core_ColocationSegmentMember_019e2ce7-9cc2-7160-92e1-8e471cb477c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments_019e2ce7-9cc2-7e7c-81b4-ea705eb5829c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfOperatingSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-73be-aa0c-0db4881b8ac4" xlink:to="loc_us-gaap_NumberOfOperatingSegments_019e2ce7-9cc2-7e7c-81b4-ea705eb5829c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019e2ce7-9cc2-7ee2-a3c9-a730111cda10" 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_SegmentReportingInformationLineItems_019e2ce7-9cc2-73be-aa0c-0db4881b8ac4" xlink:to="loc_us-gaap_NumberOfReportableSegments_019e2ce7-9cc2-7ee2-a3c9-a730111cda10" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019e2ce7-9cc2-7af3-9d86-04c6fbae30c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-73be-aa0c-0db4881b8ac4" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019e2ce7-9cc2-7af3-9d86-04c6fbae30c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_NumberOfThirdPartyDigitalAssetServices_019e2ce7-9cc2-7292-8b20-d7f31e022562" xlink:href="core-20260630.xsd#core_NumberOfThirdPartyDigitalAssetServices"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-73be-aa0c-0db4881b8ac4" xlink:to="loc_core_NumberOfThirdPartyDigitalAssetServices_019e2ce7-9cc2-7292-8b20-d7f31e022562" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/SEGMENTREPORTINGScheduleofRevenueandGrossProfitbyReportingSegmentDetails" xlink:type="simple" xlink:href="core-20260630.xsd#SEGMENTREPORTINGScheduleofRevenueandGrossProfitbyReportingSegmentDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/SEGMENTREPORTINGScheduleofRevenueandGrossProfitbyReportingSegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" 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_019e2ce7-9cc2-7e58-b991-50ca59533eab" 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_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019e2ce7-9cc2-7e58-b991-50ca59533eab" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019e2ce7-9cc2-718f-9299-1cdbd8dd61de" 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_019e2ce7-9cc2-7e58-b991-50ca59533eab" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019e2ce7-9cc2-718f-9299-1cdbd8dd61de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-718f-9299-1cdbd8dd61de_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_019e2ce7-9cc2-718f-9299-1cdbd8dd61de" xlink:to="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-718f-9299-1cdbd8dd61de_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-78ea-9395-291df2e9d12a" 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_019e2ce7-9cc2-718f-9299-1cdbd8dd61de" xlink:to="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-78ea-9395-291df2e9d12a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ColocationSegmentMember_019e2ce7-9cc2-7031-9b77-ceb91d6e87c6" xlink:href="core-20260630.xsd#core_ColocationSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-78ea-9395-291df2e9d12a" xlink:to="loc_core_ColocationSegmentMember_019e2ce7-9cc2-7031-9b77-ceb91d6e87c6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetSelfMiningSegmentMember_019e2ce7-9cc2-7819-bcce-700dd8ddb13e" xlink:href="core-20260630.xsd#core_DigitalAssetSelfMiningSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-78ea-9395-291df2e9d12a" xlink:to="loc_core_DigitalAssetSelfMiningSegmentMember_019e2ce7-9cc2-7819-bcce-700dd8ddb13e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetHostedMiningSegmentMember_019e2ce7-9cc2-7ef0-a1a1-6fbfd7a30fb7" xlink:href="core-20260630.xsd#core_DigitalAssetHostedMiningSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019e2ce7-9cc2-78ea-9395-291df2e9d12a" xlink:to="loc_core_DigitalAssetHostedMiningSegmentMember_019e2ce7-9cc2-7ef0-a1a1-6fbfd7a30fb7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019e2ce7-9cc2-7488-bc33-359205822bba" 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_019e2ce7-9cc2-7e58-b991-50ca59533eab" xlink:to="loc_srt_ProductOrServiceAxis_019e2ce7-9cc2-7488-bc33-359205822bba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e2ce7-9cc2-7488-bc33-359205822bba_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_019e2ce7-9cc2-7488-bc33-359205822bba" xlink:to="loc_srt_ProductsAndServicesDomain_019e2ce7-9cc2-7488-bc33-359205822bba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019e2ce7-9cc2-77e4-a5ad-4f378affadbe" 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_019e2ce7-9cc2-7488-bc33-359205822bba" xlink:to="loc_srt_ProductsAndServicesDomain_019e2ce7-9cc2-77e4-a5ad-4f378affadbe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ColocationServiceMember_019e2ce7-9cc2-7e5e-8506-2eecfc987993" xlink:href="core-20260630.xsd#core_ColocationServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9cc2-77e4-a5ad-4f378affadbe" xlink:to="loc_core_ColocationServiceMember_019e2ce7-9cc2-7e5e-8506-2eecfc987993" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetSelfMiningServiceMember_019e2ce7-9cc2-7967-8b71-53016ebf2969" xlink:href="core-20260630.xsd#core_DigitalAssetSelfMiningServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9cc2-77e4-a5ad-4f378affadbe" xlink:to="loc_core_DigitalAssetSelfMiningServiceMember_019e2ce7-9cc2-7967-8b71-53016ebf2969" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_DigitalAssetHostedMiningServiceMember_019e2ce7-9cc2-7f46-8ae8-aa37a382f824" xlink:href="core-20260630.xsd#core_DigitalAssetHostedMiningServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019e2ce7-9cc2-77e4-a5ad-4f378affadbe" xlink:to="loc_core_DigitalAssetHostedMiningServiceMember_019e2ce7-9cc2-7f46-8ae8-aa37a382f824" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019e2ce7-9cc2-7085-b5fe-284f6ed7e9c9" 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_019e2ce7-9cc2-7e58-b991-50ca59533eab" xlink:to="loc_srt_ConsolidationItemsAxis_019e2ce7-9cc2-7085-b5fe-284f6ed7e9c9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019e2ce7-9cc2-7085-b5fe-284f6ed7e9c9_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_019e2ce7-9cc2-7085-b5fe-284f6ed7e9c9" xlink:to="loc_srt_ConsolidationItemsDomain_019e2ce7-9cc2-7085-b5fe-284f6ed7e9c9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019e2ce7-9cc2-78cf-b425-665ce18a0c97" 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_019e2ce7-9cc2-7085-b5fe-284f6ed7e9c9" xlink:to="loc_srt_ConsolidationItemsDomain_019e2ce7-9cc2-78cf-b425-665ce18a0c97" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019e2ce7-9cc2-75c8-93c8-6f903ba075a2" 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_019e2ce7-9cc2-78cf-b425-665ce18a0c97" xlink:to="loc_us-gaap_OperatingSegmentsMember_019e2ce7-9cc2-75c8-93c8-6f903ba075a2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_LicenseFeeIncome_019e2ce7-9cc2-7618-a746-34264cff78a7" xlink:href="core-20260630.xsd#core_LicenseFeeIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_core_LicenseFeeIncome_019e2ce7-9cc2-7618-a746-34264cff78a7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_PowerFeeIncome_019e2ce7-9cc2-7d11-9145-d243d403df0f" xlink:href="core-20260630.xsd#core_PowerFeeIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_core_PowerFeeIncome_019e2ce7-9cc2-7d11-9145-d243d403df0f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_MaintenanceAndOtherRevenue_019e2ce7-9cc2-7fd7-8c80-23ae41784260" xlink:href="core-20260630.xsd#core_MaintenanceAndOtherRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_core_MaintenanceAndOtherRevenue_019e2ce7-9cc2-7fd7-8c80-23ae41784260" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019e2ce7-9cc2-78f2-a7fa-ecee894b6ae7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_us-gaap_Revenues_019e2ce7-9cc2-78f2-a7fa-ecee894b6ae7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_PowerFees_019e2ce7-9cc2-7708-9017-f38110a584bf" xlink:href="core-20260630.xsd#core_PowerFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_core_PowerFees_019e2ce7-9cc2-7708-9017-f38110a584bf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostDepreciationAmortizationAndDepletion_019e2ce7-9cc2-7ed8-885e-68e576c5b7cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostDepreciationAmortizationAndDepletion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_us-gaap_CostDepreciationAmortizationAndDepletion_019e2ce7-9cc2-7ed8-885e-68e576c5b7cd" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostDirectLabor_019e2ce7-9cc2-72c3-8f49-fdd19c351551" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostDirectLabor"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_us-gaap_CostDirectLabor_019e2ce7-9cc2-72c3-8f49-fdd19c351551" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_FacilityOperationsExpense_019e2ce7-9cc2-792e-89d8-c462e23db7d1" xlink:href="core-20260630.xsd#core_FacilityOperationsExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_core_FacilityOperationsExpense_019e2ce7-9cc2-792e-89d8-c462e23db7d1" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostOfOperatingRevenue_019e2ce7-9cc2-7617-9403-03be31d96efb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCostOfOperatingRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_us-gaap_OtherCostOfOperatingRevenue_019e2ce7-9cc2-7617-9403-03be31d96efb" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019e2ce7-9cc2-7b50-9bb0-9c70ac65680b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_us-gaap_CostOfRevenue_019e2ce7-9cc2-7b50-9bb0-9c70ac65680b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019e2ce7-9cc2-7a78-97f0-94895095a054" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_us-gaap_GrossProfit_019e2ce7-9cc2-7a78-97f0-94895095a054" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_GrossMargin_019e2ce7-9cc2-7d7b-95af-fdb240d166c4" xlink:href="core-20260630.xsd#core_GrossMargin"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019e2ce7-9cc2-7950-8ef2-a8f0738d95f1" xlink:to="loc_core_GrossMargin_019e2ce7-9cc2-7d7b-95af-fdb240d166c4" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.corescientific.com/role/SUBSEQUENTEVENTSDetails" xlink:type="simple" xlink:href="core-20260630.xsd#SUBSEQUENTEVENTSDetails"/>
  <link:definitionLink xlink:role="http://www.corescientific.com/role/SUBSEQUENTEVENTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_019e2ce7-9cc2-7ee3-89f7-5786c0363985" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_us-gaap_SubsequentEventTable_019e2ce7-9cc2-7ee3-89f7-5786c0363985" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019f6585-d260-78f8-861b-c6deb33dcbb9" 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_SubsequentEventTable_019e2ce7-9cc2-7ee3-89f7-5786c0363985" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019f6585-d260-78f8-861b-c6deb33dcbb9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019f6585-d260-78f8-861b-c6deb33dcbb9_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_019f6585-d260-78f8-861b-c6deb33dcbb9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019f6585-d260-78f8-861b-c6deb33dcbb9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019f6585-d260-7208-a9da-35a5fada9c1b" 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_019f6585-d260-78f8-861b-c6deb33dcbb9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019f6585-d260-7208-a9da-35a5fada9c1b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019f6585-f8bd-786d-9d88-bd772911e4a1" 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_019f6585-d260-7208-a9da-35a5fada9c1b" xlink:to="loc_us-gaap_SubsequentEventMember_019f6585-f8bd-786d-9d88-bd772911e4a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_019f6604-21cf-787d-b08a-a8041737ad9d" 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_SubsequentEventTable_019e2ce7-9cc2-7ee3-89f7-5786c0363985" xlink:to="loc_srt_CounterpartyNameAxis_019f6604-21cf-787d-b08a-a8041737ad9d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019f6604-21cf-787d-b08a-a8041737ad9d_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_019f6604-21cf-787d-b08a-a8041737ad9d" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019f6604-21cf-787d-b08a-a8041737ad9d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019f6604-21cf-7e36-bc50-868bc67ab2fe" 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_019f6604-21cf-787d-b08a-a8041737ad9d" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019f6604-21cf-7e36-bc50-868bc67ab2fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_AdvancedMicroDevicesInc.Member_019f6604-6e98-7b27-a526-dbbe640d1432" xlink:href="core-20260630.xsd#core_AdvancedMicroDevicesInc.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019f6604-21cf-7e36-bc50-868bc67ab2fe" xlink:to="loc_core_AdvancedMicroDevicesInc.Member_019f6604-6e98-7b27-a526-dbbe640d1432" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_NeocloudMember_019fa6d4-a7f0-7d97-a246-fbd0e52321e4" xlink:href="core-20260630.xsd#core_NeocloudMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019f6604-21cf-7e36-bc50-868bc67ab2fe" xlink:to="loc_core_NeocloudMember_019fa6d4-a7f0-7d97-a246-fbd0e52321e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019fa432-5937-7c55-ab97-12dd35fe0d0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019e2ce7-9cc2-7ee3-89f7-5786c0363985" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019fa432-5937-7c55-ab97-12dd35fe0d0d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019fa432-5937-7c55-ab97-12dd35fe0d0d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019fa432-5937-7c55-ab97-12dd35fe0d0d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019fa432-5937-7c55-ab97-12dd35fe0d0d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019fa432-5937-789d-a6a5-b16ca5935391" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019fa432-5937-7c55-ab97-12dd35fe0d0d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019fa432-5937-789d-a6a5-b16ca5935391" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_AdvancedMicroDevicesInc.WarrantsMember_019fa433-84ae-7a33-85eb-a6d4b1e218f5" xlink:href="core-20260630.xsd#core_AdvancedMicroDevicesInc.WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019fa432-5937-789d-a6a5-b16ca5935391" xlink:to="loc_core_AdvancedMicroDevicesInc.WarrantsMember_019fa433-84ae-7a33-85eb-a6d4b1e218f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_LessorOperatingLeaseGrossUtilityPowerCapacity_019f6603-3450-702c-ab3c-ca0b18af8d2b" xlink:href="core-20260630.xsd#core_LessorOperatingLeaseGrossUtilityPowerCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_core_LessorOperatingLeaseGrossUtilityPowerCapacity_019f6603-3450-702c-ab3c-ca0b18af8d2b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeaseLeaseNotYetCommencedTermOfContract1_019f6601-e143-7572-918e-5fcea6de235f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeaseLeaseNotYetCommencedTermOfContract1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_us-gaap_LessorOperatingLeaseLeaseNotYetCommencedTermOfContract1_019f6601-e143-7572-918e-5fcea6de235f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019fa3ba-2c59-7668-8549-74f9ffd8244e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019fa3ba-2c59-7668-8549-74f9ffd8244e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019fa4df-67e7-7c33-8b9f-9123ce0b21eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019fa4df-67e7-7c33-8b9f-9123ce0b21eb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ClassOfWarrantOrRightVestingSharesPerMegawatt_019fa3be-ca21-738d-adca-42cb68889e10" xlink:href="core-20260630.xsd#core_ClassOfWarrantOrRightVestingSharesPerMegawatt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_core_ClassOfWarrantOrRightVestingSharesPerMegawatt_019fa3be-ca21-738d-adca-42cb68889e10" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019fa5dc-f824-72b8-b080-b930f2054764" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019fa5dc-f824-72b8-b080-b930f2054764" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_ClassOfWarrantOrRightSharesVestedAndExercisable_019fa691-c3da-7722-af41-c23adb229952" xlink:href="core-20260630.xsd#core_ClassOfWarrantOrRightSharesVestedAndExercisable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_core_ClassOfWarrantOrRightSharesVestedAndExercisable_019fa691-c3da-7722-af41-c23adb229952" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeaseLeaseNotYetCommencedOptionToExtend_019fa6d8-6bae-72bf-a849-87a865422634" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeaseLeaseNotYetCommencedOptionToExtend"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_us-gaap_LessorOperatingLeaseLeaseNotYetCommencedOptionToExtend_019fa6d8-6bae-72bf-a849-87a865422634" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_LessorOperatingLeasesAdditionalLeasedMWs_019fa6dd-ddaa-796b-866a-df175d1b1ea1" xlink:href="core-20260630.xsd#core_LessorOperatingLeasesAdditionalLeasedMWs"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_core_LessorOperatingLeasesAdditionalLeasedMWs_019fa6dd-ddaa-796b-866a-df175d1b1ea1" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019fa6e3-a88d-7481-afbc-2a2b310b6e5f" 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_SubsequentEventLineItems_019e2ce7-9cc2-7cc6-a940-3b87c45cb63d" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019fa6e3-a88d-7481-afbc-2a2b310b6e5f" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-roles-2026.xsd#eedm1"/>
  <link:definitionLink xlink:role="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_OtherAssetsNoncurrent" xlink:type="arc" order="101"/>
  </link:definitionLink>
</link:linkbase>
