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There are 86 eighteen-letter words containing I, P, 3R, T and Y

accretionary␣prismsanterioposteriorlyanthroporadiometryanticrepuscular␣rayArcadocypriot␣Greekarteriographicallyarterioportographycarboxyprothrombinchloropyromorphitechronostratigraphycranioradiotherapycryopreservabilitycryopreservationalerythroprosopalgiaextraparliamentaryextrascripturalityferripyrophyllitesglomeroporphyriticholy␣water␣sprinklerhydroelectric␣powerhydrostratigraphichyperferritinaemiahyperferroelectrichyperfine␣structurehyperparakeratosishyperparakeratotichyperproliferatinghyperproliferationhyperproliferativehypertranscriptionhypertranspirationhypertriglyceremiaindustrial␣propertyinterparliamentaryintrapericardiallyirrepresentabilitymicrobrachytherapymicroelectrospraysmorphostratigraphyoctabromoporphyrinoverproportionallyparathyroid␣hormoneparliamentary␣burghParliamentary␣greenparliamentary␣trainParry␣Sound␣Districtperfluoroarylationperturbation␣theoryplanetary␣gear␣trainprimary␣hypothermiaprimary␣transcriptsprobationary␣periodproprietary␣eponymsproprietary␣tradingprosperity␣doctrineprotoporphyrinogenproximoposteriorlypsychrometric␣chartradiation␣pyrometerradiometeorographyreality␣pornographyreinterpretabilityrespiratory␣pigmentrespiratory␣systemssecurity␣proceduresserendipity␣berriesspectrocolorimetryspectrofluorimetryspectropolarimetrystorage␣hypervisorsstrontiopyrochloresuperextraordinarysuperparticularitysupraorbital␣arterytephrostratigraphytetrahydropyridinethermoradiotherapythyrotropic␣hormonetriangular␣pyramidsturribrachycephalytypographical␣errorundersecretaryshipureterolithotripsyurethrographicallyvectorcardiographywhitebark␣raspberry

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 98 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 9 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 2 words

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