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There are 50 twenty-one-letter words containing H, I, L, M, R, U and Y

algebraic␣number␣theoryautoradioluminographybiohydrometallurgicalbroad-leaved␣epiphyllumcetyltriethylammoniumerythroleukemogenesishairy-eared␣dwarf␣lemurshighly␣composite␣numberhighly-enriched␣uraniumhydraulic␣Keynesianismimmunohistomorphologyimmunotherapeuticallyinclusion␣polymorphismlithium␣aluminohydrideLyminster␣and␣CrossbushMartin␣Luther␣King␣Jr.␣Daymetaxylohydroquinonesmucopolysaccharidasesmucopolysaccharidosesmucopolysaccharidosismucopolysaccharidoticmyelocytoarchitecturepharmaceutical␣companyPhilippine␣flying␣lemurpillars␣of␣the␣communitypremenstrual␣dysphoriapsychoneuroimmunologypsychopharmaceuticalspsychotraumatologicalpsychotraumatologistsradioimmunochemicallyradiopharmaceuticallyreticulohistiocytomasSaint-Rémy-lès-ChevreuseShockley-Queisser␣limitshunting-yard␣algorithmspinal␣muscular␣atrophysubstoichiometricallyTeichmüller-Tukey␣lemmatetramethylguanidinestight␣building␣syndrometricyclohexylammoniumtrifluoromethylationstrifluoromethylphenyltrimethylhydraziniumstrimethylhydroquinonetriphenylphosphoniumsultramicrophotographyurea-formaldehyde␣resinwhite-plumed␣honeyeater

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 38 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 5 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 1 word

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