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There are 39 twenty-one-letter words containing A, H, L, O, S, T and X

acetylhexosaminidasesbenzyloxyphthalimidesChannel-Port␣aux␣Basquescholesterohydrothoraxchosen-plaintext␣attackcyclohexadepsipeptidedidesmethyldoxylaminedihydroxynaphthalenesdihydroxyphenylisatindiketospirilloxanthindimethoxyquinazolinesdimethylpolysiloxanesexponential␣smoothingshaving␣sexual␣relationshepatojugular␣refluxeshexachloroantimonateshexafluoroantimonateshexafluoroisobutylenehydroxyprostaglandinsichthyoallyeinotoxismisopropylthioxanthoneJoule-Thomson␣expansionMaxwell␣Street␣Polishesmetaxylohydroquinonesmethoxycarbonylationsmethyltriethoxysilanemitochondrial␣matrixesoctamethyltrisiloxaneoperational␣exhaustionpaleohexaploidisationphotodecarboxylationspolydimethylsiloxanespolyhydroxyalkanoatessuck␣all␣the␣oxygen␣out␣ofsuxamethonium␣chloridetakes␣it␣to␣the␣next␣leveltauroursodeoxycholatewhen␣one␣least␣expects␣itWitherspoon-excludable

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 40 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 3 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 1 word

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