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There are 59 twenty-one-letter words containing O, 3P, R and T

adenylpyrophosphataseamplitude␣spectroscopyanaphylactoid␣purpurasapologetic␣apostrophesapplication␣programmesapprobate␣and␣reprobateappropriate␣technologyCalifornia␣pepper␣treescapnopneumoperitoneumcompare␣apples␣to␣applescultural␣appropriationcultural␣appropriatorsculturally␣appropriatediisopropyltryptaminedropped␣like␣a␣hot␣potatoEuropean␣pond␣terrapinsfarnesylpyrophosphateferriprotoporphyrinicfibroepithelial␣polypshyperlipoproteinaemiahyperlipoproteinaemichyperlipoproteinemiashyperphosphorylationshyperpolyploidizationhypoelliptic␣operatorsinterprezygapophysealintraprezygapophysealkidnapped␣robot␣problemlipotetradecapeptideslymphoepitheliotropicmercaptopropionic␣acidmotherhood␣and␣apple␣pienucleophosphoproteinsparatopological␣groupsparietotemporopontinepentaphosphaferrocenepeptidopolysaccharidepersonal␣property␣taxesphotophosphorylationsphotoplethysmographicpolluter␣pays␣principlePortugal␣Cove-St.␣Philip'spostalveolo-prepalatalprepositional␣pronounsprincipal-agent␣problempropreantepenultimateprosopometamorphopsiapseudoanthropomorphicpseudophosphorylationpsychopharmacotherapypublic-key␣cryptography public␣key␣cryptographypurchasing␣power␣parityreciprocity␣principlesrobbing␣Peter␣to␣pay␣Paultriphenylphosphoniumstypewriter␣apostrophestypographic␣apostropheupper␣respiratory␣tract

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 36 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 5 words
  • Portuguese Wiktionary: 1 word
  • Dutch Wiktionary: 12 words

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