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There are 702 eighteen-letter words containing I, N, 2R and Y

(page 4)

nonhyperandrogenicnoninsurrectionarynon-military␣servicenonproportionalitynonreproducibilitynontransferabilityNorthwest␣Territorynotoryctemorphiansnylon-string␣guitarsoctabromoporphyrinoctadehydrocorrinsoligohypomenorrheaordinary␣resolutionoverconservativelyoverproportionallyPaal-Knorr␣synthesisPaisley␣Undergroundpalynostratigraphypancreaticobiliarypapilioerythrinoneparaprofessionallyparathyroid␣hormoneparatransgenicallyparatympanic␣organsParkinson's␣syndromeparliamentary␣agentparliamentary␣burghParliamentary␣greenparliamentary␣heels Parliamentary␣heelsparliamentary␣trainParry␣Sound␣Districtparsimony␣principleparthenocarpicallypepsinhydrochloricperfluoroarylationperformance␣anxietypericyclic␣reactionpermanent␣residencyperpetual␣inventoryperturbation␣theoryphanerocrystallinepharmacoresistancypharyngobranchialspharyngolaryngitespharyngolaryngitisphosphorylcreatinephycoerythrobilinsphycoerythrocyaninphylotranscriptomepin␣a␣rose␣on␣your␣nosepink␣fairy␣armadillopiperonylonitrilespiriformis␣syndromeplanetary␣gear␣trainplaying␣the␣race␣cardplay␣one's␣cards␣rightpleuroperipneumonypolicy␣interest␣ratepolyacrylonitrilespolygon-circle␣graphporphyrinogenicityportal␣hypertensionpour␣honey␣in␣one's␣earprecrystallizationpredecarboxylationpredeterminabilitypreliminary␣rulingspreoligodendrocyteprephosphorylatingprephosphorylationpresynchronizationprimary␣legislationprimary␣transcriptsPrince␣Edward␣CountyPrince␣George␣Countyprinciple␣of␣charityprobationary␣periodproinflammationarypropionylpromasineproposition␣playersproprietary␣eponymsproprietary␣tradingpropriosensitivityprosecution␣historyprosperity␣doctrineprotoplanetary␣discprotoplanetary␣diskprotoporphyrinogenpsychogeriatricianpyrazolopyrimidinePyrénées-OrientalespyrimidopyrimidinepyroelectrodynamicpyrrolidinophenonePythagorean␣triplesquality␣requirementquaternary␣ammoniumquaternary␣industryradiation␣chemistryradiation␣pyrometerradiculoneuropathyradioimmunotherapyRainy␣River␣Districtrank-nullity␣theoremRayleigh␣scatteringreality␣pornographyreconstructabilityreconstructibilityrecrystallisationsrecrystallizationsred-backed␣fairywrenredbrick␣university red␣brick␣universityred-winged␣fairywrenregistration␣countyreinterpretabilityrephosphorylationsrepresentationallyresolution␣advisoryrespiratory␣pigmentrestoration␣ecologyrestriction␣enzymesresynchronisationsresynchronizationsretransformabilityretrocycloadditionretrophylogenomicsretrosyntheticallyreversing␣cylindersrhinolaryngoscopesribopuromycylationribosyltransferaseRiemannian␣geometryRocky␣Mountain␣feverrotational␣symmetryround-trip␣delay␣timerumination␣syndromesaccopharyngiformsSandmeyer␣reactionsscansoriopterygidsSchnitzler␣syndromescimitar-horned␣oryx

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 625 words
  • Spanish Wiktionary: 1 word
  • Italian Wiktionary: no word
  • German Wiktionary: 84 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 21 words

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