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There are 1040 eighteen-letter words containing 2I and 3O

(page 7)

radiation␣poisoningradiochronologicalradiocommunicationradioconcentrationradiocontaminationradioembolisationsradioembolizationsradiofluorinationsradiohalogenationsradioimmunologicalradioimmunoproteinradioimmunosorbantradioimmunosorbentradiological␣weaponradiomorphologicalradiosynovectomiesradiotoxicologicalrecorporealizationrectosigmoidectomyrectosigmoidoscopyrelative␣topologiesreprotoxicologicalRepublic␣of␣Colombiaresolution␣advisoryretroaldolizationsretrocycloadditionretrotranspositionrevolutionisationsrevolutionizationsribonucleoproteinsribopuromycylationrootinest␣tootinest rootin'est␣tootin'estrotational␣moldingsrotational␣mouldingrule␣with␣a␣rod␣of␣ironSakharov␣conditionssalpingooophoritis salpingo-oophoritissecond␣conditionalssemi-boarding␣schoolseroepizootiologicshaking␣in␣one's␣bootsshooting␣from␣the␣hipshooting␣from␣the␣lipshoots␣one␣in␣the␣sinksialoglycoproteinssialoglycosylationsignal-to-noise␣ratiosocial␣evolutionismsocial␣psychologiessociochronobiologysociocommunicativesociodemographicalsocioendocrinologysocioenvironmentalsociophilosophicalsociopoliticolegalsociopsychologicalsociopsychologistssociotechnologicalsodium␣borohydridessodium␣hypochloritesolenofilomorphidssole␣proprietorshipsolids␣of␣revolutionsowing␣one's␣wild␣oatsspectrogoniometricspectrohelioscopicspectromicroscopicspontaneous␣fissionstereohistologicalsticks␣one's␣foot␣in␣itstriking␣one's␣colorsstrontiojoaquinitesubcompositionallysulfochlorinationssulfonatoisoindolesulfoniopropionatesulphochlorinationsuperoleophobicitysymproportionationtaxonomic␣inflationtechnophilosophiesterminologizationstetraiodothyroninethanatomicrobiomicthermoembolizationthermophysiologiesthiazoloquinolinesthioazolidinedionethioglycosylationsthionitrobenzoatesthiophosphoric␣acidThird␣Law␣of␣Roboticsthoracicoabdominalthrombocytokineticthrombocytopoiesisthrombocytopoieticthrowing␣to␣the␣lionsthrow␣in␣one's␣lot␣withtoast␣notificationston␣of␣refrigerationtoo␣much␣informationtooth-billed␣pigeonstopoisomerizationstoxicopathologicaltransphonologizingtretinoin␣tocoferiltrichofolliculomastrichostrongyloidstrichostrongylosistrinitrofluorenonetrinitroresorcinoltriphosphorylationtwo-point␣conversionultrabiomicroscopyundercoordinationsUnion␣of␣South␣Africaureterolithotomiesvasoepididymostomyvideoconsultationsvideodermoscopicalvideofluorographicvideolaryngoscopicvideostroboscopiesviolaceous␣euphoniaviscocanalostomiesvocationalizationswarning␣colorationswatercolor␣illusionwindows␣of␣discoursewithout␣a␣word␣of␣a␣lieworking␣one's␣tail␣offwould␣it␣kill␣someonewrits␣of␣prohibitionyouth␣organizationsZoroastrianizationzygomaticosphenoid

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