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There are 876 eighteen-letter words containing 2O, P, S and 2T

(page 3)

hydropletismometerhydrostatic␣paradoxhydroxytryptophanshymenopterologistshypernitrosylationhyperoptimizationshypersomatotropismhypertranslocationhypofractionationshypogalactosylatedhyposensitisationshyposensitizationshypothalamectomiesignotum␣per␣ignotiusimmunopathologistsimmunopotentiatorsimplicit␣cognitionsinput␣method␣editorsinput-output␣sectioninsectivorous␣plantinstitute␣professorinterferonopathiesintermetamorphosisintrachloroplasticintraperitoneouslyintrospectionisticintrospective␣sortsisoelectrophoreticisotopic␣signaturesisotransplantationis␣the␣Pope␣a␣Catholicjoint␣probabilitieskeeps␣one's␣mouth␣shutkeeps␣the␣pot␣boilingkeep␣to␣one's␣knittingKingston␣upon␣Thameskleptochloroplastsknights␣of␣the␣spigotlectotypificationslepidopterologistsLipschitz␣conditionlogical␣positivistslong-footed␣potorooslophiostomataceouslymphohistocytosislysophosphatidatesmacrocomparativistmagnetic␣anisotropymagnetoabsorptionsMaksutov␣telescopesmammosomatotrophicmandatory␣reportersmass␣transportationmattress␣protectorsmechanoadaptationsmenstruation␣periodmetallophosphatasemetalloproteinasesmetaproteogenomicsmethoxytryptophansmethylprogesteronemethylprotodioscinmetropolitan␣bishopmetropolitan␣elitesmicrolepidopteristmicro-optimizationsmicropatriologistsmicrospathodontinemicrospectrometersmicrotranscriptomemisprognosticatingmisprognosticationMissouri␣toothpicksmonophthongisationmonopisthocotyleanmonothiophosphatesmorphostratigraphymorphosyntacticianMother␣of␣Presidentsmoving␣the␣goalposts moving␣the␣goal␣postsmultineurotrophinsmultipolarisationsmultipolarizationsmultispectroscopicmutton-chop␣whiskersmyoepitheliomatousnanophotocatalystsnanophytoplanktonsnanoprecipitationsnaphthodianthronesnaphtholsulphonatenarcodictatorshipsnational␣sports␣teamNATO␣reporting␣namesneoallotetraploidsneoautotetraploidsnephropathologistsneuroarthropathiesneurocristopathiesneuroretinopathiesneurotranscriptomeNewtonian␣telescopenonanthropologistsnoncompetitivenessnoncooperationistsnoncustodial␣parentnoninterpretationsnonintrospectivelynonphotostimulatednonprocrastinatingnonpsychotomimeticnontranscriptionalnontransplantationno␣show␣without␣Punchnostocyclopeptidesnotch␣in␣one's␣bedpostnotch␣on␣one's␣bedpostnotoryctemorphiansobject␣pool␣patternsoccipitotransverseoestroprogestativeoligoteratospermiaontoepistemologiesopens␣the␣floodgatesoperationalisationopisthobranchiatesopportunity␣classesopsonophagocytoticorganoheterotrophsorganotherapeuticsorthopantomographsorthopediatriciansorthopneic␣positionorthopsychiatristsosteoarthropathiesosteochondropathiaosteochondrophytesosteochondroplastyosteocompatibilityosteoproliferationosteoproliferativeouter␣automorphismsout␣of␣one's␣own␣pocketovercapitalisationoverextrapolations

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