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There are 450 eighteen-letter words containing E, I, L, P, R, S and Y

(page 3)

presuppositionallypresymptomaticallyprimary␣legislationprobability␣densityprobability␣measurepropionylpromasineproposition␣playersprosperity␣theologyproteoaminoglycansprotocycloceratidsprotodesilylationsprotoplanetary␣discprotoplanetary␣diskproximoposteriorlypseudoheritabilitypseudohyperkalemiapseudoparaphylliumpseudouridylationspseudozygopleuridspsychodermatologicpsychogeographicalpsychoneurologicalpsychoneurologistspsychoneuroticallypulmonary␣embolismsPyrénées-OrientalespyridylsulfoximinePythagorean␣triplesrefreshable␣displayrenohistopathologyrephosphorylationsrepresentationallyreticulated␣pythonsreticulocytopeniasretinovasculopathyretrophylogenomicsrhinolaryngoscopesRoyal␣Leamington␣Spasalpingopharyngealsalpingopharyngeussalpingovariectomysandplay␣therapistsSanfilippo␣syndromesecurity␣principalssemibiographicallysemiprofessionallysemirespectabilitysialoglycopolymerssialoglycoproteasesialoglycoproteinssialoglycoproteomesialylglycopolymersialylglycoproteinsingle-parent␣familysingle-ply␣membranessleeping␣dictionarysling␣psychrometerssmall␣penis␣syndromesodium␣hypochloritesolitary␣sandpiperssouthern␣yellow␣pinespectrocolorimetryspectrofluorimetryspectrographicallyspectroheliographyspectropolarimetryspinal␣butterfly␣rayspinycheek␣sleepersspiny-tailed␣lizardsspirocycloheptanesspirocyclopentanesspirocyclopropanessplendid␣fairywrensspondylarthritidesspondyloperipheralspondylotherapistsstannary␣parliamentsteganographicallystereospecificallystinking␣corpse␣lilystrontiopyrochloresubtherapeuticallysubtropical␣cyclonesuccinylproteomicssulphinic␣anhydridesulphonic␣anhydridesuperadiabaticallysuperagonisticallysuperexponentiallysuperintegrabilitysuperiority␣complexsuperoleophobicitysuperparticularitysuperphenomenalitysuperphysiologicalsuperpositionalitysupersubstantiallysupersuperlatively super-superlativelysupersymmetricallysupraorbital␣arterySurekill␣Expresswaysuspensory␣ligamentsymbolic␣expressionsymplectic␣matricessymplectomorphismsSyrian␣Arab␣Republictake␣responsibilityTaylor-White␣processtheoretical␣physicsthermophysiologiesthiophosphorylatedtonsillopharyngealtransphenomenalitytranspolyisoprenestranspyloric␣planestrialkylphosphinestrichlorobiphenylstrichlorodiphenylstricresyl␣phosphatetriisopropylsilanetrimethylphosphinetrimethylpyridinestriphenylethylenestriphenylphosphanetriphenylphosphatetriphenylphosphinetrivinylphosphinestrypanosusceptibletryptophylquinonestypical␣bush␣warblerundecylprodigiosinunrepresentabilityunrepresentativelyureterolithotripsyureteropyeloscopicvelocity␣dispersionvery␣special␣episodeveterinary␣hospitalvideolaryngoscopes video␣laryngoscopesvideolaryngoscopicVietnam␣People's␣ArmyvinylcyclopropanesWinter␣Olympic␣Gameswireless␣telegraphywukipolyomavirusesxylopolysaccharide

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 514 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 45 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 19 words

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