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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a0890f-dba6-7f7a-90f2-a9af4a99fda4,g:888f4e8d-f456-4471-96ab-b8506b2f7c64-->
<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-20260910.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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_01a0890f-dba6-73f8-9cbc-7a752771e4b1" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_DocumentInformationTable_01a0890f-dba6-73f8-9cbc-7a752771e4b1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a0890f-dba6-7fb2-99ae-0b9a4088916b" 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_01a0890f-dba6-73f8-9cbc-7a752771e4b1" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a0890f-dba6-7fb2-99ae-0b9a4088916b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0890f-dba6-7fb2-99ae-0b9a4088916b_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_01a0890f-dba6-7fb2-99ae-0b9a4088916b" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0890f-dba6-7fb2-99ae-0b9a4088916b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0890f-dba6-7965-bc19-bab321d2bc88" 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_01a0890f-dba6-7fb2-99ae-0b9a4088916b" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0890f-dba6-7965-bc19-bab321d2bc88" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_01a0890f-dba6-7b20-9550-5093bb5ed7d3" 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_ClassOfStockDomain_01a0890f-dba6-7965-bc19-bab321d2bc88" xlink:to="loc_us-gaap_CommonStockMember_01a0890f-dba6-7b20-9550-5093bb5ed7d3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantExercisePriceOf6.81PerShareMember_01a0890f-dba6-70e6-a7d6-76feb7b02bdc" xlink:href="core-20260910.xsd#core_WarrantExercisePriceOf6.81PerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a0890f-dba6-7965-bc19-bab321d2bc88" xlink:to="loc_core_WarrantExercisePriceOf6.81PerShareMember_01a0890f-dba6-70e6-a7d6-76feb7b02bdc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_core_WarrantExercisePriceOf0.01PerShareMember_01a0890f-dba6-7fa6-87b7-024bcb7a6194" xlink:href="core-20260910.xsd#core_WarrantExercisePriceOf0.01PerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a0890f-dba6-7965-bc19-bab321d2bc88" xlink:to="loc_core_WarrantExercisePriceOf0.01PerShareMember_01a0890f-dba6-7fa6-87b7-024bcb7a6194" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_01a0890f-dba6-75ec-ae1f-c84f51cf31c8" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_DocumentType_01a0890f-dba6-75ec-ae1f-c84f51cf31c8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_01a0890f-dba6-7e66-9194-3224b2748b19" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_DocumentPeriodEndDate_01a0890f-dba6-7e66-9194-3224b2748b19" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_01a0890f-dba6-7cd2-9150-1c66bd4e05c0" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityRegistrantName_01a0890f-dba6-7cd2-9150-1c66bd4e05c0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_01a0890f-dba6-70cf-a115-0ec18c6ab8df" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityIncorporationStateCountryCode_01a0890f-dba6-70cf-a115-0ec18c6ab8df" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_01a0890f-dba6-7ac3-9c44-3b40d94de3f4" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityFileNumber_01a0890f-dba6-7ac3-9c44-3b40d94de3f4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_01a0890f-dba6-7727-ad17-2e04543ea84f" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityTaxIdentificationNumber_01a0890f-dba6-7727-ad17-2e04543ea84f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_01a0890f-dba6-706a-8cd5-33fa1b13bde1" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityAddressAddressLine1_01a0890f-dba6-706a-8cd5-33fa1b13bde1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_01a0890f-dba6-7842-801f-221543de4d2c" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityAddressAddressLine2_01a0890f-dba6-7842-801f-221543de4d2c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_01a0890f-dba6-7808-b5bb-3f58527d1e3e" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityAddressCityOrTown_01a0890f-dba6-7808-b5bb-3f58527d1e3e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_01a0890f-dba6-7fa0-92d2-a8abb1a6058c" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityAddressStateOrProvince_01a0890f-dba6-7fa0-92d2-a8abb1a6058c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_01a0890f-dba6-7405-ab54-6d182c484f38" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityAddressPostalZipCode_01a0890f-dba6-7405-ab54-6d182c484f38" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_01a0890f-dba6-7505-867e-e03e64310947" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_CityAreaCode_01a0890f-dba6-7505-867e-e03e64310947" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_01a0890f-dba6-751d-9f2d-995507baa4da" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_LocalPhoneNumber_01a0890f-dba6-751d-9f2d-995507baa4da" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_01a0890f-dba6-7be3-8d4a-23ee83dafffd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_WrittenCommunications_01a0890f-dba6-7be3-8d4a-23ee83dafffd" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_01a0890f-dba6-7549-9fc4-5fbf4ce60805" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_SolicitingMaterial_01a0890f-dba6-7549-9fc4-5fbf4ce60805" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_01a0890f-dba6-75ec-9237-65f208c0df3f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_PreCommencementTenderOffer_01a0890f-dba6-75ec-9237-65f208c0df3f" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_01a0890f-dba6-74a9-9855-3c00d9fd34ba" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_01a0890f-dba6-74a9-9855-3c00d9fd34ba" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a0890f-dba6-7d9d-ad6f-d2130ca13e2b" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_Security12bTitle_01a0890f-dba6-7d9d-ad6f-d2130ca13e2b" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a0890f-dba6-74c7-aed2-a78361a4829f" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_TradingSymbol_01a0890f-dba6-74c7-aed2-a78361a4829f" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a0890f-dba6-7eb4-ace7-6662deafba36" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_SecurityExchangeName_01a0890f-dba6-7eb4-ace7-6662deafba36" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_01a0890f-dba6-76d7-81f8-c5a21b28ad4d" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityEmergingGrowthCompany_01a0890f-dba6-76d7-81f8-c5a21b28ad4d" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_01a0890f-dba6-7671-bb21-349f50d432e2" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_EntityCentralIndexKey_01a0890f-dba6-7671-bb21-349f50d432e2" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_01a0890f-dba6-7810-be6e-3e04c466c743" 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_01a0890f-dba6-7661-b66e-b472cc4f061a" xlink:to="loc_dei_AmendmentFlag_01a0890f-dba6-7810-be6e-3e04c466c743" xlink:type="arc" order="22"/>
  </link:definitionLink>
</link:linkbase>
