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There are 80 twenty-one-letter words containing 2H, 2I, O and 2R

anthropomorphisationsanthropomorphizationsarchaeological␣horizonarcheological␣horizonsatherothrombogenicityautohistoradiographicbacteriopheophorbidesbrachiocephalic␣arterybrachiocephalic␣trunksbringing␣down␣the␣hammerchemoradiotherapeuticchlorotrimethylsilanechronobiogeographicalchronopharmacokineticchronostratigraphicalcisheteropatriarchiescomes␣with␣the␣territorydihydrodesoxymorphinedihydrophenanthridinedishonorable␣dischargedrive-through␣penaltiesechocardiographicallyfirm␣hands␣on␣the␣tillersglycerophosphoric␣acidheliosynchronous␣orbitheterochromatizationsheterooligosaccharidehigh␣probability␣tradeshistomorphometricallyhistoricogeographicalhistory␣of␣the␣four␣kingshome␣is␣where␣the␣heart␣ishomomorphic␣encryptionhow␣do␣I␣get␣to␣the␣airporthydrodesulphurisationhydrodesulphurizationhypercholesterinaemiahyperchylomicronaemiahyperthermoacidophilehysterical␣historicalsimmunochromatographicKernighan-Lin␣algorithmKirchhoff's␣circuit␣lawsknight␣in␣shining␣armourknights␣in␣shining␣armorLord␣High␣CommissionersmethyldihydromorphinemethyltrichlorosilanemicrolymphangiographyNeukirch-Uchida␣theoremnitro-hydrochloric␣acidNorth␣East␣LincolnshireNorth␣Island␣eyebrightsorthographic␣neighborsorthographic␣neighbourparanoid␣schizophreniapharmacopsychiatristsphenyldichloroarsinesphenyltrichlorosilanephilharmonic␣orchestraphosphorus␣trichloridephotomicrographicallypseudohermaphroditismradiochemotherapeuticradiophotographicallyrheumatoid␣arthritidesright␣stochastic␣matrixscorched-earth␣policies scorched␣earth␣policiessemigroup␣homomorphismshunting-yard␣algorithmthermochemical␣caloriethrow␣one's␣hat␣in␣the␣ringtrichloromethylsilanetrichloronitromethanetrichorhinophalangealtrichothiodystrophiestrimethylchlorosilanetrimethylhydroquinonetriphenylchlorosilane

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 123 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 128 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 15 words

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