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18-Letter Words Containing: I,I,O,S

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There are 290 18 letter words, 735 18 letter phrases and 0 18 letter abbr's with I,I,O,S in.

Best Scoring 18 Letter Words With: I,I,O,S

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Words (290)
telecommunicationsdisproportionatelyinconsequentialitytransubstantiationtransmogrificationoversimplificationsociopsychologicalinstitutionalizingantivivisectionistpaleoclimatologistvideoconferencingsverisimilitudinousvaingloriousnessesuniformitarianismsunconvincingnessesuncompromisingnessunaccountabilitiesultrasophisticatedultramicroscopicaltriskaidekaphobiastriboluminescencestriboelectricitiestransportabilitiestransistorizationstransilluminationsthrombophlebitidesthermoplasticitiestheatricalizationstachistoscopicallysupranationalitiessupersophisticatedsuperminicomputerssupercivilizationssuperciliousnessessuperadministratorsubmicroscopicallysubclassificationssubcategorizationsstructuralizationsstoichiometricallystereospecificallystereoregularitiessomnambulisticallysemiprofessionallysemidomesticationssemiconservativelysedimentologicallysatisfactorinessessacrilegiousnessesribonucleoproteinsrevascularizationsrenationalizationsreinstitutionalizerehospitalizationsredistributionistsrecrystallizationsreconstructionistsreconstructionismsradiosensitivitiesquattuordecillionsquasiperiodicitiespsychophysiologistpsychophysiologiespsychobiographicalprovincializationspropagandisticallypronounceabilitiespraiseworthinessespostmillennialistspostmillennialismspostmillenarianismpolyesterificationpolyacrylonitrilespiezoelectricitiesphysiopathologicalphotosensitizationphotosensitivitiesphotoreactivationsphotomicrographiesphotolithographiesphotodissociationsphotodisintegratesphotodisintegratedphotodecompositionpertinaciousnessespathophysiologicalparticularizationspaleoclimatologiesoverspecializationoveroptimisticallyoverindustrializesoverindustrializedoverfertilizationsovercommunicationsovercommercializesoverclassificationoscillographicallyorthopsychiatristsorthogonalizationsopinionativenessesnonrevolutionariesnoninterventionistnonfraternizationsnondiscriminationsnondeductibilitiesnoncooperationistsnoncomparabilitiesnoncommutativitiesnonarbitrarinessesneurotransmissionsneuropsychiatristsneurophysiologistsmultifariousnessesmonochromaticitiesmisrepresentationsmisinterpretationsmisidentificationsmisclassificationsmisadministrationsmineralocorticoidsmicroreproductionsmicroradiographiesmicrophotographiesmicrometeorologistmicrometeorologiesmicromanipulationsmicrolepidopterousmicroencapsulationmicroencapsulatingmicrodensitometricmicrodensitometersmicrocrystallinitymicrocalorimetriesmethemoglobinemiasmeretriciousnessesmelodramatizationsmechanochemistriesmaladministrationsmagnetostrictivelymacroglobulinemiaslymphangiographieslipopolysaccharidelepidopterologistsknowledgeabilitiesirresponsivenessesirresponsibilitiesirreconcilablenessintrospectionisticinterrelationshipsinteroperabilitiesinternationalitiesinternationalisinginterinstitutionalintercolumniationsinstitutionalisinginhospitablenessesinharmoniousnessesindustrializationsindividualizationsindissolublenessesincorruptibilitiesincorrigiblenessesinconvertibilitiesincontestabilitiesinconsiderablenessinconclusivenessesinconceivabilitiesincommodiousnessesincommensurabilityincombustibilitiesinauspiciousnessesimpersonalizationsimmunosuppressionsimmunoreactivitiesimmunoprecipitatesimmunopathologistsimmunohematologistimmunohematologiesimmunodeficiencieshyposensitizationshypophysectomizinghypersensitizationhyperrationalitieshyperpolarizationshyperpigmentationshypernationalistichyperimmunizationshyperalimentationshydroelectricitieshomoscedasticitieshistophysiologicalhemoglobinopathiesgranulocytopoiesisfractionalizationsferroelectricitiesexterritorialitiesexceptionabilitiesevapotranspirationethnomusicologistsethnomusicologicalepithelializationselectrophysiologicelectrophilicitieselectrodesiccationelectrodepositionselectrochemistriesechocardiographiesdisputatiousnessesdisproportionationdisproportionatingdisintermediationsdisingenuousnessesdiphenylhydantoinsdihydroergotaminesdiastereoisomerismdepersonalizationsdenominationalismsdenationalizationsdemythologizationsdematerializationsdeinstitutionalizededifferentiationsdecriminalizationsdeconstructionistscreditworthinessescounterquestioningcounterinstitutioncounteradvertisingconversationalistscontradistinctionsconsubstantiationsconstitutionalizesconstitutionalizedconstitutionalistsconstitutionalismsconsequentialitiescongregationalistscongregationalismsconceptualizationscompartmentalisingcompanionabilitiescommercializationscommensurabilitiescollectivisticallycoccidioidomycosesbureaucratizationsbourgeoisificationbloodthirstinessesbiotransformationsbiodegradabilitiesbiocompatibilitiesbacteriorhodopsinsaustralopithecinesantidiscriminationanticommercialismsantiadministrationanagrammatizationsunsatisfactorinessunconstitutionallyultranationalistictriphosphopyridineterritorialisationsentimentalizationsentimentalisationrhinolaryngologistpteridospermopsidaovercapitalisationnonprognosticativeneurophysiologicalmuscivora-forficatalaryngopharyngitislacto-vegetarianisminternationalistichypoparathyroidismhomobasidiomyceteshistocompatibilitygood-neighborlinessglomerulonephritisfibrocartilaginousdiethylstilbestrolcytoarchitectonicscross-fertilizationcross-fertilisationcorrosion-resistantcoccidioidomycosisballistocardiogramarteriolosclerosisantiferromagnetismanticholinesteraseanti-traditionalism
Phrases (735)
woodwind instrumentwisteria floribundawilliam dean howellsvladimir mayakovskyvictor frankensteinvaccinium oxycoccusupton beall sinclairtomistoma schlegelithird epistle of johnthird epistel of johntendonous synovitistelevision reportertelevision receivertangible possessionsyzygium aromaticumsyrian monetary unitsupervisory routinesuperiority complexsuborder myxinoideisocial organizationsocial organisationsir mortimer wheelersir martin frobishersir frederick ashtonsir christopher wrensingle-reed woodwindshort-term liabilitysetophaga ruticillasergei rachmaninoffsense of equilibriumselective lipectomyscottish highlanderscorpio the scorpionscandinavian nationrheims-douay versionrespiratory illnessrepublic of surinamerepublic of sloveniarepublic of maldivesreligious residenceprofessional boxingpriority processingposterior pituitarypositive reinforcerpolitical dissidentpolish monetary unitpodilymbus podicepsplanning commissionpiano transcriptionphysiological statephysical attractionostrya carpinifoliaoscar hammerstein iiorder sarcosporidiaorder ichthyosauriaorder ciconiiformesone thousand millionon an irregular basisoil-industry analystodocoileus hemionusoceanites oceanicusnicolaus copernicusnavigational systemnational censorshipnarcotic antagonistmusical compositionminor tranquilliserminister of religionmeconopsis cambricamaterial possessionmagnoliopsid familymacrozamia communislouis-hector berliozlogistic assistancelogistic assessmentlinguistic relationlepomis macrochiruslanius lucovicianuskalmia angustifoliajames whitcomb rileyisabella i of castileirvingia gabonensisinternational scaleinstallation chargehypostasis of christhypertonic solutionhistorical documentheat of vaporisationgovernment ministergiambattista marinogeophysical sciencegenus struthiomimusgarcinia mangostanafunctional disorderfricative consonantfirst epistle of johnfederation of tribesfamily scorpaenidaefamily scolopacidaeessential conditionessential amino aciderigeron canadensiselection commissionelaeagnus latifoliaeconomic assistanceduck-billed dinosaurdouay-rheims versiondmitri shostakovichdivision eubacteriadivision cynodontiadivision anthophytadistributor housingdirect transmissiondiplomatic ministerdigitalis glycosidedanish monetary unitdame sybil thorndikecyanocitta cristatacrotalus mitchelliiconstantin brancusicommissaire maigretcolumbia universitycognitive semanticsclass magnoliopsidachemical operationsceremonial occasioncastanea mollissimacapital of wisconsincapital of swazilandcapital of minnesotacapital of louisianacapital of indonesiacapital of australiabush administrationbook of instructionsblue ridge mountainsbiological researchbanana passion fruitauthoritarian stateattestation serviceassyrian neo-aramaicartistic productionartemisia filifoliaarmoracia rusticanaantispasmodic agentantipsychotic agentantineoplastic drugantagonistic muscleandrew dickson whiteanchusa officinalisanamnestic reactionanalysis of varianceamphibious aircraftamlodipine besylatealpinia officinalisalexander i of russiaair-to-ground missileaegean civilisationadministrative bodyadenosine deaminaseactinidia deliciosawinter olympic gameswillie howard mays jr.william henry hudsonwhole life insurancewhite slime mushroomwhite fringed orchiswest indian smallpoxvolumetric analysisvinegar joe stilwellvespertilio murinusvermillion rockfishvena supraorbitalisvascular hemophiliavaccinium scopariumvaccinia gangrenosauropsilus soricipesuniversity of sussexuniversity of oxfordunipolar depressiontrusteeship counciltropical rain foresttrogium pulsatoriumtrisodium phosphatetremella fuciformistransmission systemtransitive verb formtransfiguration daytransfer of trainingtopical anaesthetictopical anaesthesiatobacco mosaic virustime deposit accounttime-and-motion studythermosetting resinthermoplastic resinthermobia domesticathermionic emissiontheory of indicatorsthamnophis sirtalisthamnophis sauritusthamnophis proximusthalamostriate veinteucrium scorodoniaterritorial reservetaraktogenos kurziitaraktagenos kurziitanacetum douglasiisystema digestoriumsymplocus tinctoriaswiss confederationsuspended animationsurvivors insurancesurjective functionsupra expressionismsuperior labial veinsuperior colliculussuperfamily apoideasuborder tarsioideasuborder ruminantiasuborder pinnipediasuborder mugiloideasuborder lacertiliasubgenus calliopsissubfamily dorylinaestriped button quailstress incontinencestraight-line methodstochastic variablestictopelia cuneatastereoscopic visionstellar associationstarvation acidosisstanford universitystained-glass windowst. ignatius of loyolast. christopher-nevissporobolus poiretiispirit of turpentinespanish inquisitionspace-time continuumsouthern maidenhairsolidago canadensissolar magnetic fieldsolanum commersoniisodium thiosulphatesodium hypochloritesociological theorysocio-economic classsmilax rotundifoliasloanea jamaicensisslip friction clutchsir ernst boris chainsir alfred hitchcocksignal-to-noise ratioside-blotched lizardsidalcea malviflorasiberian wall flowershortia galacifoliasexual relationshipserratula tinctoriasentential functionsensory deprivationsensorimotor regionseminiferous tubulesemiconductor diodeselaginella eatoniisegmentation cavitysecondary dentitionsecobarbital sodiumscopolia carniolicascolymus hispanicussaxifraga hypnoidessarcophilus hariisisao tome and principesample distributionsalicornia europaeasaint thomas aquinassaint teresa of avilasacrifice operationrhodesian ridgebackrhodanthe manglesiirhizopus stoloniferrhizomatous begoniarhizoctinia diseaserhetorical questionrespiratory diseaserepulsorlift enginereligious mysticismrelative atomic massregression equationregression analysisregistration numberregional anesthesiareal-time processingreactive depressionreaction propulsionratibida columnarisquadriphonic systempyrrhuloxia sinuatapyrophosphoric acidpylodictus olivarispus-forming bacteriapurple virgin's bowerpublius ovidius nasopublic relations manpublic presentationpterocarpus indicuspsychotria capensispsoriatic arthritispseudotaxus chieniiprunus angustifoliaprospero lambertiniprosopis juliifloraprosecuting officerpropositional logicprofessional tennisprocursive epilepsyprionotus carolinusprehistoric cultureprairie golden asterpotentilla anserinapotassium hydroxidepositive chemotaxispositional notationporcupine provisionponcirus trifoliatapolystichum brauniipolypodium scouleripolyphosphoric acidpolitical scientistpolitical commissarpolice commissionerpolemonium viscosumpoinciana gilliesiipoephila castanotispodiceps ruficollisplumed scorpionfishploceus philippinusplatanus orientalisplatanus acerifoliapinus californiarumpimenta officinalispierre-simon laplacephragmites communisphotogenic epilepsyphasianus colchicuspezophaps solitariapesticide poisoningpersonal credit lineperiodontal diseasepeperomia sandersiipenstemon rydbergiipedilanthus pavonispediculosis capitispedestrian crossingparkinsonia floridaparathion poisoningpaprilus alepidotuspancreatic fibrosispanax quinquefoliuspalestine authorityoxytropis lambertiiornithopod dinosaurorder ustilaginalesorder rickettsialesorder polymastiginaorder mycrosporidiaorder haplosporidiaorder haemosporidiaorder cypriniformesorder coraciiformesopisthocomus hoazinold frisian languageobservation stationnormative economicsnormal distributionnonsocial infectionnonreligious personnon-christian priestnikolai lobachevskynihilistic delusionnicolaus zinzendorfnicholas ii of russianewtonian mechanicsneurotic depressionnemophila menziesiinegative chemotaxisnational assistancenasogastric feedingnarcissus jonquillamyosotis scorpiodesmyositis trichinosamusculophrenic veinmultiplication signmultiple regressionmomordica balsaminamolecular biologistmissouri compromiseminor diatonic scaleminoan civilisationmineral associationminato ohashi bridgemilitary commissionmilitary censorshipmikhail baryshnikovmicroscopic anatomymicroprocessor chipmetaphosphoric acidmetabolic alkalosismerovingian dynastymeriones longifronsmenominee whitefishmelospiza georgianamelissa officinalismelicocca bijugatusmedical institutionmason and dixon's linemarta brigit nilssonmarsilea drummondiimarriage counselingmammillaria plumosamalathion poisoningmalacosoma disstriamajor tranquillisermajor diatonic scalemagneto-optical discmagnesium hydroxidemacrozamia spiralismachine translationlysiloma bahamensislucius dubignon clayloxostege similalislouis henry sullivanlouis henri sullivanlonicera canadensislobelia siphiliticalivistona australislitocranius wallerilip synchronizationlip synchronisationlimnodromus griseuslimnocryptes minimaliliid monocot genusligustrum japonicumlibyan islamic grouplepiota cepaestipeslepidochelys kempiilending institutionlegislative councillearner's dictionaryleaning tower of pisalathyrus latifoliuslate-spring-bloomingland-office businesslactarius deliciosokolkwitzia amabiliskingdom protoctistakingdom of swazilandkeratosis nigricanskammon strait bridgejunction transistorjuglans californicajudicial separationjuan carlos i of spainjosiah willard gibbsjoseph paul dimaggiojoint chiefs of staffjohn birks gillespiejessica lucy mitfordjean francois milletjasminum officinalejasminum nudiflorumjapanese poinsettiajacksonian epilepsyitalian honeysuckleisopyrum biternatumiron-storage diseaseipomoea orizabensisionization constantintravenous feedinginternal combustionintermediate shroudinterfacial tensioninsider informationinorganic phosphateinorganic chemistryinformer's privilegeinformation scienceinformation measureinflectional suffixinflationary spiralinferior colliculusinductive reasoningindirect expressionindigenous languagein your birthday suitin one's birthday suitidiopathic disorderidiographic sciencehysterical neurosishypoplastic anaemiahypophosphoric acidhuntington's diseasehomo sapiens sapiensholocentrus bullisihindu kush mountainshindostani languagehibiscus moscheutoshesperis matronalishedeoma pulegioidesheat of dissociationhave the distinctionhalocarpus bidwillihalicoeres radiatushaematobia irritansguilt by associationgrindelia squarrosagrievous bodily harmgreenhouse emissiongreen fringed orchisgraduation exercisegradable oppositionglorious revolutiongiannangelo braschigianbattista bodonigiambattista bodonigiacomo della chiesageostationary orbitgenus trichodesmiumgenus septobasidiumgenus rhinonicterisgenus pithecolobiumgenus paphiopedilumgenus micropogoniasgenus microdipodopsgenus ibero-mesornisgenus hyacinthoidesgenus falcatifoliumgenus dicranopterisgenus chorizagrotisgenus chilomeniscusgenus centropristisgenus bougainvilleagenus argyroxiphiumgenus archidiskidongenus actiniopterisgenital personalitygastroepiploic veinfunctional genomicsfumaria officinalisfuchsia excorticatafringed loosestrifefrancois mitterrandfragaria chiloensisfour-wing flying fishflorida selaginellafinno-ugric-speakingfemale circumcisionfavourable positionfausto paolo sozzinifamily xenosauridaefamily synodontidaefamily stromateidaefamily rhiptoglossafamily relationshipfamily plasmodiidaefamily orchestiidaefamily nephropsidaefamily musophagidaefamily gobiesocidaefamily ceratopsidaefamily catostomidaefamily aulostomidaefamily ambrosiaceaefairness commissionexclusion principleeusebius hieronymuseuclid's second axiomeuclid's fourth axiomeptesicus serotinusepacris obtusifoliaenglish hippocrateselectrostatic fieldeichhornia spesiosaedwin dubois haywardecclesiastical robeecclesiastical modeeastern indigo snakeeastern catholicismeast indian rosewooddryopteris goldianadryopteris filix-masdryopteris dilatatadomesticated animaldoctor of humanitiesdivision rhodophytadivision phaeophytadivision myxomycotadivision cyanophytadivine right of kingsdiversionary attackdistrict of columbiadissociation energydisorderly behaviordiscretionary trustdioscorea bulbiferadianthus latifoliusdepressive disorderdelusional disorderdeflationary spiraldeep supporting firedeductive reasoningcytisus multifloruscupressus arizonicacrucifixion of jesuscross-country skiingcross-country ridingcrisis interventioncriminal possessioncrataegus apiifoliacorticospinal tractcorrosive sublimatecoronavirus diseasecornelius janseniuscoreopsis tinctoriacordyline australiscoptis groenlandicaconversion reactionconversion hysteriaconversion disorderconvallaria majaliscontinuing trespasscontagious abortionconsumer price indexconnarus guianensisconjugal visitationcongenital disorderconflict of interestcomputer simulationcomplex prepositioncompetitor analysiscommunist manifestocoluber hippocrepiscollective securitycolinus virginianuscognitive scientistcoeloglossum virideclinical psychologyclinical depressionclianthus speciosusclematis versicolorclassical philologyclass hepaticopsidaclass ginkgophytinaclass coniferopsidacitrus aurantifoliacitroncirus webbericirsium lanceolatumcirsium helenioidescimicifuga racemosachristian schonbeinchoriotis australischolesterosis cutischelifer cancroidescheilanthes eatoniicharles william postcharles vii of francecharles ii of englandchamaemelum nobiliscerebrospinal fluidcercis occidentalisceratotherium simumceltis occidentaliscelestial longitudecatherine i of russiacassia occidentaliscassia augustifoliacarolingian dynastycarissa grandifloracardigan welsh corgicardamine douglasiicapital of singaporecapital of san marinocapital of costa ricacamassia scilloidescalostoma raveneliicallorhinus ursinuscalifornia sycamorecalifornia allspiceburhinus oedicnemusbubalus mindorensisbrush-tail porcupinebroadcasting studiobritish labour partybrevoortia tyrannisbougainville islandborn-again christianbird-footed dinosaurbinge-vomit syndromebillion-dollar grassbidens trichospermabarbados maidenhairautomobile industryautoimmune disorderautoimmune diabetesasterid dicot familyassociative aphasiaassociate in nursingasian tiger mosquitoarteria ethmoidalisarteria communicansartemisia abrotanumaristotelia serrataaristolochia duriorarisaema dracontiumapothecaries' weightanolis carolinensisanointing of the sickanoa depressicornisannona diversifoliaanion-exchange resinangoumois grain mothanarchist communismalsophila pometariaalice-josephine ponsalan mathison turingagitated depressionagelaius phoeniceusaegilops triuncalisadmiralty mountainsacute brain disorderacoustic resistanceacoustic projectionacoustic absorption
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