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There are 61 twenty-one-letter words containing E, H, 2N, O and 2P

adenosinetriphosphate adenosine␣triphosphatebenzonaphthothiopheneChinese␣postman␣problemcompounding␣pharmaciescontinental␣philosophycouldn't␣happen␣to␣a␣nicercreatine␣phosphokinasedisappears␣into␣thin␣airelectroencephalophoneencephaloneuropathieshaemopneumoperitoneumhepatonephric␣syndromehomomorphic␣encryptionhypergonadotropinemiahypoproconvertinaemiaisopropylthioxanthonekeeps␣someone␣in␣the␣loopmagnetencephalographymagnetoencephalographmeningoencephalopathymethylenecyclopropanemethylenecyclopropenemicroentrepreneurshipmoney␣can't␣buy␣happinessmonophosphohistidinesmonophosphonucleosidenanospectrophotometernanospectrophotometrynaphthalenesulphonatenucleophosphoproteinsopening␣a␣can␣of␣whoop␣assoxyiminocephalosporinpara-acetylaminophenolparanoid␣schizophreniapassionate␣friendshipspenny␣wise,␣pound␣foolishpentacontaheptachoronpentaphosphaferrocenepharyngotympanic␣tubesphenolsulfonphthaleinphenylmethylsulphonylphono-semantic␣compoundphosphatidylthreoninephosphogluconolactonephytophenomenologicalpneumoencephalographypolyphenylenevinylene polyphenylene␣vinylenepopping␣someone's␣cherryprotacanthopterygianspush␣against␣an␣open␣doorput␣a␣spanner␣in␣the␣workspyranonaphthoquinonesSecond␣Spanish␣Republicsopranissimo␣saxophonesphenopalatine␣foramentechnophilanthropiststriphenylphosphoniumstwo␣ha'pennies␣for␣a␣pennywrapped␣one's␣head␣around

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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: 28 words
  • Portuguese Wiktionary: 1 word
  • Dutch Wiktionary: 19 words

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