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There are 35 twenty-one-letter words containing 3H, 2I and 2O

chemolithoautotrophicchemolithotrophicallycholedocholithotomiescholedocholithotripsydiphosphatidylcholinedoing␣the␣handsome␣thingdolichyldiphosphatasehad␣another␣think␣cominghas␣another␣think␣comingHashimoto's␣thyroiditishemihexakisoctahedronhistoriophilosophicalhydrophosphinylationshyperthermoacidophileichthyoarchaeologicalichthyogeographicallyit's␣the␣hit␣dog␣that␣howlslike␣shit␣through␣a␣goosemethyldihydromorphinemonophosphohistidinesorthographic␣neighborsorthographic␣neighbourphilharmonic␣orchestraphosphatidylthreoninephosphorus␣trichloridephotolithoautotrophicphotolithographicallyright␣hand␣of␣fellowshipsouthern␣school␣whitingtechnophilanthropiststhrow␣one's␣hat␣in␣the␣ringthrow␣one's␣weight␣behindtrichorhinophalangealtrichothiodystrophiestriphenylphosphoniums

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 34 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 4 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 1 word

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