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There are 117 twenty-one-letter words containing I, L, M, 3O and Y

adsorption␣calorimetryalkylaminooxadiazolesaminopolycarboxylatesanatomopathologicallyasteroseismologicallyautomation␣complacencyautoradioluminographyaxiom␣of␣extensionalitybiological␣immortalitybuddy␣memory␣allocationcarboamidomethylationcarbomonoxyhemoglobincarboxyhemoglobinemiachemolithotrophicallycocamidopropylbetaine cocamidopropyl␣betainecombinatorial␣geometrycommon␣squirrel␣monkeyscommunion␣ecclesiologycomputational␣geometrycyclotomic␣polynomialsdermatohistopathologydiaminomonocarboxylicdomestic␣policy␣councilelectromyostimulationelectropolymerisationelectropolymerizationethnomethodologicallyexploratory␣committeesflexible␣sigmoidoscopyglobotriaosylceramideglycopyrronium␣bromidegyrotrigonometricallyhemlock␣woolly␣adelgidsheteropolymerizationshistomorphometricallyhomogeneous␣polynomialhomogenous␣polynomialshydroclimatologicallyhydrogeomorphologicalhyperbolic␣polynomialsichthyoallyeinotoxismimmunocytofluorescentimmunocytofluorimetryimmunocytofluorometryimmunohistomorphologyimmunopathophysiologyimmunophysiopathologyimprovisational␣comedyinclusion␣polymorphisminformation␣technologyisostoichiometricallylymphoepitheliotropicmacroclimatologicallymannosylglycoproteinsmathematical␣sociologymetaxylohydroquinonesmethoxycarbonylationsmethylisothiazolinonemicroclimatologicallymicrocolorimetricallymicrofluorocytometersmicroionophoreticallymicrometeorologicallymicromorphometricallymicroviscoamylographsmonoglycosylceramidesMonro-Kellie␣hypothesismorphophysiologicallymountain␣clouded␣yellowmucopolysaccharidosesmucopolysaccharidosismucopolysaccharidoticmultimethodologicallymycobacteriologicallyneuroimmunomodulatorynonphenomenologicallyoccipital␣horn␣syndromeontoepistemologicallyophthalmodynamometricorganopolymerizationsoxyiminocephalosporinpharmacophylogenomicspharmacophysiologicalphosphoaminoglycosidephotocolorimetricallyphotoelectrochemistryphotomicrographicallyphotoplethysmographicphotothermoelasticityphysiopharmacologicalphytophenomenologicalplay␣into␣someone's␣handspolypharmacologicallyprostatovesiculectomyProto-Malayo-Polynesianpsychological␣hedonismpsychoneuroimmunologypsychopharmacologicalpsychopharmacologistspsychotraumatologicalpsychotraumatologistsreticulohistiocytomasrevolving-door␣syndrome revolving␣door␣syndromeRocky␣Mountain␣Kool-Aidsscientific␣methodologysocialism␣in␣one␣countryspectrobolometricallystereomicroscopicallystole␣someone's␣identitythermochronologicallytomodensitometricallytrifluoromethylationsultramicrophotographyvinyl␣composition␣tilesyou␣win␣some,␣you␣lose␣some

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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: 1 word
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: no word

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