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There are 73 twenty-one-letter words containing A, D, 2O and X

abdominocardiac␣reflexalkenoyloxazolidinonealkylaminooxadiazolesalkyldihydroxyacetonealkylhydroperoxidasesAx-Grothendieck␣theorembenzoylhydroxylaminescarboxamidoadenosinescarboxamidomethylatedchenodesoxycholic␣acidchlorodeoxyadenosinescholesterohydrothoraxcoordination␣complexescyclomaltodextrinasesdeoxyribonucleotidasedesoxyribonucleic␣aciddiaminomonocarboxylicdichlorophenoxyaceticdicyclohexylammoniumsdigital␣converter␣boxesdihydroxyacetophenonedihydroxybenzoic␣acidsdiketospirilloxanthindimethoxyquinazolinesdimethylpolysiloxanesdumber␣than␣a␣box␣of␣rocksEastern␣Orthodox␣Churchendodeoxyribonucleaseexocellobiohydrolasesexodeoxyribonucleasesexploding␣head␣syndromeextensional␣definitionexternopyramidisationexternopyramidizationgoods␣and␣services␣taxesGrelling-Nelson␣paradoxhemihexakisoctahedronhexahydroxoantimonatehexatriacontanoic␣acidhydroxyanthraquinoneshydroxydeoxyguanosinehydroxyergocalciferolhydroxyisovaleric␣acidhydroxynaphthoquinonehydroxyprostaglandinslean␣nitrogen␣oxide␣trapLennox-Gastaut␣syndromelexical␣correspondenceMadonna-whore␣complexesmetaxylohydroquinonesmitochondrial␣matrixesmonocarboxypeptidasesmonofixation␣syndromesneoconvallatoxolosidepaleohexaploidisationpaleohexaploidizationphotodecarboxylationspolydimethylsiloxanespolyhydroxyalkanoatesproduction␣externalitypyrrazolooxadiazepinepyrrolidonecarboxylicRoss-Littlewood␣paradoxRussian␣Orthodox␣ChurchSerbian␣Orthodox␣Churchsocial␣anxiety␣disordersuxamethonium␣chloridetauroursodeoxycholatetetrahydroxoberyllatetriacetone␣triperoxidetriacetoxyborohydrideWitherspoon-excludableWizard␣of␣Oz␣experiments

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 86 words
  • Spanish Wiktionary: 1 word
  • Italian Wiktionary: no word
  • German Wiktionary: 4 words
  • Portuguese Wiktionary: 2 words
  • Dutch Wiktionary: 14 words

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