15 letter words ending with "ion"

microextraction microfiltration microgeneration microlamination micropopulation microprojection microprotrusion microsimulation microvegetation midconstruction midconversation middleeducation mikeaconfession militarypension minerinfraction miniaturisation miniaturization minorirritation minuitcondition minusdefinition mirspacestation misappreciation misapprehension misarticulation misassimilation misconsecration misconstruation misconstruction miscontentation misdistribution misery-courtion mislocalization misprescription misrecollection misregistration misscalculation missinformation missinginaction misvocalization monoacetylation monobromination monomethylation monooxygenation monosporulation monstrification montreal-dorion moralobligation mountainpassion mouthrecitation movingviolation multi-addiction multicollection multiconnection multiconversion multigeneration multilateration multimerisation multimerization multinucleation multiproduction multiprotection multireflection multiresolution muscovitization musialsposition musicalcreation musicalnotation musicmodulation mycoremediation mycorestoration mythinformation mythologisation mythologization namerecognition nanofabrication nanoformulation nanoindentation nanoremediation narcosuggestion narrativization nationalisation nationalization navalairstation neejerkreaction nephelinization neuromodulation neuronavigation neuroprotection neuroticization neutralposition neutralsolution nitrogenization nixtamalisation nixtamalization noloossituation nolosesituation non-acceptation non-conjunction non-consumption non-cooperation non-disjunction non-repudiation noncancellation noncolonization nonconservation nonconstruction noncontribution nonconversation nondistribution nonexploitation noninstallation nonintersection nonintervention nonnotification nonprescription nonpresentation nonpreservation nonremuneration nonreproduction nonsolicitation nonsubscription nonverification nosyplaystation notosphaeridion noweansituation nowhimsituation nowindsituation nowinksituation nrgconservation ntionlssocition nuclearinfusion nuclearreaction numskullsession objectification objectivization obscurification ofamanoranation officeextension officialisation officialization oldergeneration oldtimereligion oligarchization oligomerisation oligomerization oliveammunition olivecompletion olivecomplexion olympia-stadion oneconstitution onemanoperation oneononesession onlyageneration opencompetition opposeaquestion opticalillusion oralexamination organdomination orientalization oscarnomination oscul-inflexion osteoconduction osteoproduction ostrobogulation other-direction ourfederalunion outer-direction outofcommission outofproportion over-correction over-dispersion over-estimation over-population overapplication overcalculation overcompression overconsumption overelaboration overenunciation overlegislation overpenetration overpreparation overrestoration overspeculation overstimulation overutilisation overutilization overvaccination overventilation oxychlorination paarassociation pair-conversion pan-destruction paneldiscussion panicdepression pantheonization paraffinization parahelicoprion parahephaestion parallelisation parallelization parametrisation parametrization parentification parfocalization parliamentation paroleviolation partspermillion partyconvention passivification passportization pastexpectation pastoralization paternalisation paternalization pathoadaptation pathologisation pathologization patrickquestion pausedaquestion pavingattention payingattention peelingtheonion peerinstruction pegmatitization percentsolution perchlorination perfectionation peripherization perpetualmotion personalisation personalization personalopinion personifacation personification phlegmatization phlogistication phoneconnection phonemicization phoneticization phonoabsorption phonologization phosphatization phosphorization phosphorylation photo-oxidation photo-secession photoabsorption photoactivation photoadsorption photoannulation photoconduction photoconversion photodesorption photodisruption photoexcitation photogeneration photoimpression photoinhibition photoinitiation photoionisation photoionization photoproduction photoprotection photorefraction photorelaxation physicalization phytoconcretion phytoextraction piapproximation picktherightion pinglegislation pinkofcondition pixelresolution placeinposition planetarymotion platinumedition platyspermation poeticaddiction pointedquestion pointinquestion poisedforaction polarexpedition polecomposition polemicposition politicalaction politzerization polyadenylation polyglutamation polyglycylation polysulfuration polyuridylation ponyplaystation poorcirculation popsthequestion porcineablution post-deflection post-maturation post-production postcorrelation postdeprivation postdestination postdevaluation postgermination postinformation postintegration postirradiation postlegislation postobservation postprenylation postpublication postreformation postreplication posttransfusion postvaccination poultryinmotion powergeneration practicesession pre-destination preachification preapprehension precancellation prechlorination precisification precivilization precompensation precomplexation precondemnation preconstruction predeliberation predissociation predistillation predistribution preequalization preexistimation prehabilitation prehypertension preimmunization preimplantation preinauguration preinstallation preintermission prelocalization premodification prenasalization prenotification preoptimization preorganization prepolarization preratification preregistration pressingmission pretransmission preussenstadion previousversion priceregulation priedpossession primaryelection primitivization privatedevotion privatefunction prizepossession probingquestion procrastination prognostication proinflammation proletarization prolongdivision propernutrition propylitization proratedtuition proselytisation proselytization prosodification pryorconviction pseudoaddiction pseudoprecision pseudoreduction psychoeducation psychoportation publiceducation pursuit-evasion putterconfusion quadraicequaion quadrangulation quadripartition quadruplication quasi-fibration quasi-quotation questpermission quietrevolution quintuplication rack-and-pinion racketandpinion radioactivation radioiodination radioprotection railroadstation rainforestation ramblingmansion rancidification rapidescalation rapidsuccession rationalisation rationalization re-cohabitation re-constriction re-introduction re-presentation re-transmission reaccommodation reaccreditation reacidification reactualization reafforestation reamplification reappropriation rearguardaction rearomatization reauthorization rebarbarization recalcification recarburization recertification reclarification recombobulation reconcentration recondescension reconfiguration reconsideration reconsolidation recontamination recontemplation reconvalidation redetermination redocumentation redskinnedonion refactorisation refactorization refeudalization reflexivization reforestization refortification refractionation regionalisation regionalization reglucosylation reharmonisation reharmonization reheapification rehybridization rehydrogenation rehypothecation reincarceration reincorporation reiningposition reinvestigation reliquefication reliquification remagnetization remanifestation rementimutation remixploitation renormalisation renormalization reorchestration repacketization repalletization reprecipitation reprivatization repronunciation requalification rerandomization resacralization rescueoperation resedimentation resensitization resequestration reserialization reserpinization residualportion resocialization respecification restabilization resterilization restructuration resumetheaction resymbolization retranscription retribalization retro-cognition retrocopulation retroinhibition retroreflection revcrabsolution reversedecision revictimization revirginization revisualisation revisualization rhizofiltration risinginflation roadtoperdition robustification roentgenization romanianization romanticisation romanticization roominstruction roseinrebellion runofthemillion ruralpopulation s-nitrosylation sacculinization safecombination saledoorstation sanskritisation sanskritization saucefoundation sausageandonion scapolitization schillerization schlongdivision science-fiction scificonvention scioncommission scoringposition scorpioillusion screwballnotion scrubthemission seafaringnation seasonalization seasonofpassion secondthemotion sedentarisation sedentarization seeillustration self-abnegation self-absorption self-accusation self-admiration self-affliction self-alienation self-assumption self-castration self-centration self-compassion self-confession self-conviction self-estimation self-exaltation self-excitation self-expression self-immolation self-involution self-medication self-motivation self-perception self-perfection self-persuasion self-possession self-protection self-regulation self-relocation self-repetition self-revelation self-separation self-suggestion selfexamination selfinteraction selfreplication semanticization semi-supination semiabstraction semibrachiation semidesperation sensibilization septendecillion servesuggestion servicification sesquioxidation shatteredvision shearingsection shearperfection sheerperfection shockabsorption sightcorrection signedapetition signofaffection singularization sinohelicoprion skeletalization skeletonisation skeletonization skipageneration smartcollection smithcoronation smoothification snaptoattention solidfoundation somatosensation sonyplaystation sorbetsinmotion sound-condition soundofderision sourdisposition southernization sowingformation specialelection specularization speechification spheroidization splinterfaction splittformation spontaneanation spottyreception spoudaiogeloion sprbingvacation spreadformation spursinnovation spursintoaction stablecondition stageadaptation stampcollection standardisation standardization standingovation stateoftheunion stayofexecution steelproduction stenospermation stereoinduction stereoinversion stickysituation stimbergstadion stingimpression stormingsession stressreduction stringification strokingsection structurization studenterection subalimentation subconversation subdenomination subdistribution subintellection sublimification sublocalization subministration suboptimisation suboptimization substantivation suburbanization subvocalization succenturiation sudweststadion sueyourillusion sugarplantation suicidesolution suittheoccasion sunnisinfection sunsetprovision superactivation supercavitation superconception superconduction superconnection superderivation superelongation superencryption superexaltation superexcination superexcitation superexpression superimposition superinjunction superinsulation superordination superproportion superreflection superresolution supersaturation supersemination supertuberation supparasitation supplementation supportsamotion supraordination swayonesopinion swimsuitedition swingintoaction switchselection syllabification symplectization synchronisation synchronization systematisation systematization tabledecoration tabledthemotion tablesthemotion takingexception target-action tasteperception tattertimallion tautomerization teensploitation teleinstruction temporalization terminalization termofevolution terrapinstation tessarabrachion tetraevangelion tetramerisation tetramerization tetrazotization texasannexation theannunciation theconstitution theconversation thecowardlylion thecruelsealion theheartofalion thematicization themegeneration theorganization thepowerstation theprioryofsion thepurification theresurrection thermodiffusion thermoreduction thermosensation thesilmarillion thetifromnation thirdgeneration throwanelection tictactoeoption tillaggspension tiptopcondition tiredexpression toothextraction topicalillusion totterdemallion trackingstation tradeconvention trafficcitation tranquilization transactivation transalkylation transannulation transcoloration transferstation transfiguration transgeneration translimitation transliteration translumination transmetalation transmodulation transnihilation transnomination transplantation transrepression trashcollection trialseparation tribonucleation trichodorcadion tricklequestion trickysituation tripoliceaction triteexpression trombone-action trombonesection tropicalization trouttemptation tuballitigation tubalobligation tuberculization tuberorachidion tunnelprovision turksploitation twocarcollusion twopointversion twoweekvacation ualtransmission udderexhaustion udderperfection ultrafiltration ultrasonication umpiresdecision unalignednation unbiasedopinion uncomprehension uncondescension unconsideration under-condition underdiscussion underdispersion underestimation underevaluation underexpression undergorotation undermodulation undermotivation underpopulation underprediction underproduction undersaturation undetermination unicodification unjustification unpremeditation unqualification unsubordination untrigintillion upforapromotion upfordiscussion uptoexpectation useofcorrection ussconstitution utero-gestation utterexhaustion valmorification variolitization vascularisation vascularization verticalization victoriastation videodeposition visatransaction visceralization visuoperception vlodrop-station vogueprevention warisacontagion warsofattrition watchtelevision waterloostation weejerkreaction weightreduction welcomeaddition westerndivision westernreligion whatintarnation whatisaquestion whiskyrebellion wikipediavision wildimagination wildparkstadion winningposition winstheelection wintermigration winwinsituation withmyeducation withoutomission withoutquestion womansintuition womensintuition woodwindsection wordassociation workingvacation worlddomination worldpopulation wrongconclusion wrongimpression ws-coordination x-communication xenotransfusion xerophytization yesornoquestion yourimagination youthscompanion zeppelinstadion