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There are 774 eighteen-letter words containing A, 2C, 2I, O and R

(page 5)

normoprolactinemicoccipitotransverseoligosaccharidosison␣a␣collision␣courseopen␣circuit␣voltageoptical␣microscopesorganoboronic␣acidsoriginal␣charactersorthorectificationoscillographicallyosteoradionecroticotomicroscopicallyoverclassificationovercommercializedovercommercializespancreatectomizingpancreaticobiliarypancreaticoentericpancreaticogastricpancreaticohepaticpancreaticosplenicparacoccidioidomasparaconductivitiespentatriacontanoicpericardiocentesespericardiocentesispericonceptionallypericyclic␣reactionPeruvian␣Inca␣Orchidphacoiridencleisispharmacoepigeneticpharmacogeneticistpharmacoinformaticpharmacokineticistpharmacometriciansphenylboronic␣acidsphonocardiographicphonomicrosurgicalpicocyanobacterialpicocyanobacteriumpicroindigocarmineplatinichloric␣acidplatinochloric␣acidpocket␣dictionariespolitical␣commissarpolitical␣correctorpolitically␣correctpolitical␣machinerypolitical␣spectrumspoliticocommercialpoliticohistoricalpolycarboxylic␣acidpolychromatophilicpolymicrobacterialpolyphosphoric␣acidpragmatic␣sanctionsprinciple␣of␣charityprismatic␣compassesprocaine␣penicillinprocalcitoninaemiaprocardiomyopathicprojection␣matricesproscenium␣curtainsprotective␣reactionprothoracicotropicprotocatechuic␣acidprotocoligoricallyprovincial␣capitalspseudoaristocraticpseudodisaccharidepseudoisochromaticpsychobiographicalpsychogeriatricianpsychohistoricallyptilochronologicalpyrophosphoric␣acidquadratic␣functionsquadriaccelerationquasimonochromaticradii␣of␣convergenceradioactive␣tracersradiochronologicalradiocommunicationradioconcentrationradioluminescencesradiopacificationsradiospectrometricradiotoxicologicalraffinosaccharidesreaction␣mechanismsrecatholicizationsrecharacterisationrecharacterizationreciprocal␣altruismreciprocalizationsreciprocitarianismrecircularisationsrecircularizationsreconceptualizingsreconstructabilityrectal␣varicositiesreductionisticallyreprotoxicologicalRepublic␣of␣Colombiareticulocytopeniasreticulogeniculateretrocycloadditionribonucleoparticleribose␣nucleic␣acidsring-tailed␣macaucosrun␣around␣in␣circlesruncicantellationssabbatical␣officersSaint␣Nicholas'␣clerkscattering␣functionscientific␣romancesscleractiniamorphsScotch␣marine␣boilersecondary␣infectionseismic␣performanceself-certificationsself-contradictionsseroclassificationsocial␣commentariessocial␣conservatismsocial␣conservativesociodemographicalsociopragmaticallyspecial␣proceedingsspectroradiometricspherical␣harmonicsStarbucksificationstationary␣bicyclesstencil␣duplicatorsstereospecificallystochastic␣matricesstock␣market␣indicesstoichiometricallystrict␣implicationssubatomic␣particlessubmicroscopicallysuccinocarboxamidesulphocarbonic␣acidsupercontractivitysupermicrosurgicalsupramicrosurgicaltauroselcholic␣acid

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