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There are 965 eighteen-letter words containing A, 2I, R and Y

(page 6)

Polynesian␣Trianglepolyphosphoric␣acidpopulation␣pyramidspositive␣neutralitypostpericardiotomypostpolymerizationpotassium␣hydroxidepotential␣vorticitypotentiometricallyprecompositionallyprecrystallizationpredeterminabilitypredispositionallypreliminary␣rulingspresuppositionallypresynchronizationprimary␣hypothermiaprimary␣legislationprimary␣transcriptsprinciple␣of␣charityprobability␣densityprobability␣measureprobationary␣periodprocardiomyopathicproinflammationaryprolymphangiogenicpropagandisticallypropionylpromasineproposition␣playersproprietary␣tradingprotocoligoricallyprotodesilylationspseudoheritabilitypseudouridylationspsychobiographicalpsychogeriatricianpsychohistoricallypulmonary␣docimasiapupillographicallypyrazolopyrimidinepyrheliometricallypyridinylimidazolepyrimidodiazepinespyrophosphoric␣acidquality␣requirementquantum␣immortalityquasireversibilityquasithermodynamicradiation␣chemistryradiation␣pyrometerradioimmunoassayedradioimmunotherapyradiosynovectomiesRainy␣River␣DistrictRayleigh␣scatteringreconstitutabilityreconstructabilityrecrystallisationsrecrystallizationsreductionisticallyred-winged␣fairywrenregistration␣countyreinterpretabilityresolution␣advisoryrespiratory␣pigmentrestitutive␣fantasyresyllabificationsresynchronisationsresynchronizationsreticulocytopeniasretinohypothalamicretransformabilityretrocycloadditionrhythmic␣gymnasticsribopuromycylationRiemannian␣geometryright␣lymphatic␣ductround-trip␣delay␣timerumination␣syndromerunning␣in␣the␣familysalpingovariectomySanfilippo␣syndromescansoriopterygidsscimitar-horned␣oryxsecondary␣emissionssecondary␣infectionsecondary␣intentionsecondary␣liabilitysecurity␣market␣linesecurity␣principalsseismocardiographyself-referentialitysemibiographicallysemiconservativelysemiprofessionallysemirespectabilitysemisymmetrizationsensitivity␣readersserodiagnosticallyShanghai␣hairy␣crabsshoving␣it␣up␣your␣asssialoglycoproteinssialyldisaccharidesialylglycoproteinSiberian␣rubythroatsigillographicallysignature␣authoritysingle-parent␣familysix␣bob␣a␣day␣touristsskinny␣drink␣of␣watersleeping␣dictionarysociopragmaticallysolitary␣sandpipersspiny-tailed␣lizardsspiritualisticallysplendid␣fairywrensspondylarthritidesstandard␣of␣identitystationary␣bicyclesstereoisomericallystereospecificallystoichiometricallystratificationallystyrylisothiazolessublogarithmicallysubmicroscopicallysulfinic␣anhydridessulfonic␣anhydridessulphinic␣anhydridesulphonic␣anhydridesuperadiabaticallysuperagonisticallysupercontractivitysuperintegrabilitysuperparticularitysuperphysiologicalsuperpositionalitysupranutritionallysupraphysiologicalSwiss␣Army␣penknivessympathetic␣stringssympathoinhibitorssympathoinhibitorysymplectic␣matricessymproportionation

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 883 words
  • Spanish Wiktionary: 9 words
  • Italian Wiktionary: no word
  • German Wiktionary: 66 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 24 words

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