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There are 3189 eighteen-letter words containing I, O and 2S

(page 21)

sulfonatoisoindolesulfonic␣anhydridessulfosalicylic␣acidsulpharsenious␣acidsulphate␣of␣magnesiasulphotungstic␣acidSumatran␣rhinocerossummability␣methodssummary␣proceedingssunk␣costs␣fallaciesSunnyside-Tahoe␣Citysuperadministratorsuperagonisticallysupercivilisationssupercivilizationssupercolumniationssupercommunicatorssupercompensationssupercondensationssuperconsciousness super-consciousnesssuperconservativessupercounterfluidssuperdistributionssuperferociousnesssuperhero␣insurancesuperimpregnationssuperinstantaneous super-instantaneoussuperior␣colliculussupermicrosurgicalsuperminicomputerssupernova␣impostorssuperpersonalitiessuperphysiologicalsuperpositionalitysuperprofessionalssuperproficienciessupersophisticatedsuperstabilizationsuperstoichiometrysupertranslationalsupervaluationistssupposititiousnesssuppressive␣personssupraconsciousnesssupramicrosurgicalsupraorganizationssupraphysiologicalsurface␣etymologiessurgical␣proceduressurvivorship␣biasessuspended␣animationsuspension␣syndromesuspensory␣ligamentSussex␣pond␣puddingssustainable␣touristsustaining␣programsswallow-tailed␣kitesswears␣like␣a␣trooperswings␣for␣the␣fencesSwiss␣Confederationswitching␣functionsSylvester␣equationssymbolic␣expressionsymmetric␣functionssympatheticolyticssympathetic␣powderssympathicomimeticssympathoinhibitorssymplectomorphismssynchiotrophoblastsynchronized␣clockssynchronized␣diverssynctiotrophoblastsyntacticosemanticsynthetic␣divisionssystems␣of␣equationssystems␣programmingtachistoscopicallytake␣care␣of␣businesstake␣responsibilitytakes␣it␣on␣the␣archestakes␣it␣upon␣oneselftaking␣to␣the␣streetstalipes␣equinovarusTauberbischofsheimTaylor's␣polynomialsTaylor-White␣processtechnodeterminists techno-deterministstechnophilosophiestechnoprogressivesteledermatologiststelestereoscopicalteletranscriptionstelevision␣channelstelevision␣episodestelevision␣networkstelevision␣programstelevision␣stationstellurobismuthitesTemminck's␣tragopanstendril␣perversionstenoepiphysiodesistensor␣fasciae␣lataeterms␣and␣conditionsterrestrialisationterritorial␣pissingtertiary␣phosphinestetrakisphosphatestetraploidisationsthalassochelydiansthalassotherapiststhaumastodermatidsthaumatopsyllioidsthe␣house␣always␣winsthe␣joke␣is␣on␣someonetheoretical␣physicsthermoadhesivenessthermoelasticitiesthermophysiologiesthermoplasticitiesthermoplastic␣resinthermoresponsivitythermosalinographsthermosalinometersthermoviscoelasticthin-film␣transistorthink␣with␣one's␣penisthiodigalactosidesthioglycosylationsthiopyrophosphatesthiosemicarbazidesthiosemicarbazonesthird-person␣pluralsthird-person␣shooterthorosteenstrupinethough␣I␣say␣so␣myselfthree␣skips␣of␣a␣lousethrombocytogenesisthrombocytopoiesis

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