12 letter words ending with or in the mammoth censored word list.

accommodator agglomerator agglutinator antipredator appropriator approximator archagitator assassinator autodetector autodigestor autoinjector averruncator baroreceptor biofiltrator bioindicator bioprocessor boomoperator certificator chiropractor circumventor coaggregator cocounsellor coformulator collaborator commemorator commiserator communicator concentrator confabulator configurator conflagrator conquistador consolidator contaminator contemplator contradictor coproprietor corroborator counteractor decapsulator decarbonator decoagulator decompressor decorticator deduplicator demonstrator dephlegmator deteriorator determinator disconnector dispossessor disseminator dissimulator domesticator electrofluor electromotor encapsulator equilibrator expectorator expostulator expropriator exterminator exteroceptor extrapolator fractionator funambulator gesticulator hallucinator hydrogenator hyperreactor hypohydrator hyposecretor hypothecator impersonator impropriator improvisator incapsulator incarcerator incorporator incriminator individuator interlocator interlocutor interoceptor interpolator interrogator introspector investigator justificator lithotriptor magnetomotor matriculator methoxychlor minedetector miscegenator misestimator nanophosphor nocireceptor noncapacitor noncollector nonconductor nondelegator nonmotivator nonreflector nullificator orchestrator overinvestor overstressor oxygenerator participator perambulator peregrinator perlustrator perseverator pontificator preallocator precipitator preconductor predominator preestimator pregenerator preinspector prejudicator premeditator preprocessor preseparator prestigiator prevaricator primogenitor progenerator proliferator pseudovector qualificator radiolocator ratiocinator recipiomotor reciprocator recriminator refrigerator remonstrator renegotiator reperforator resuscitator reverberator rheoreceptor rodomontador scarificator scintillator selfassessor selfeducator selfgovernor selfinflator sensorimotor sequestrator significator stabilisator stabilizator subinspector subordinator subprocessor testificator transgressor triangulator underreactor uniprocessor velociraptor versificator visceromotor