Mammoth Uncensored Word List:
115 words ending with or, 12 letters long

accommodator agglomerator antipredator appropriator assassinator autodetector averruncator baroreceptor chiropractor circumventor collaborator commemorator commiserator communicator concentrator confabulator conquistador consolidator contaminator contemplator contradictor coproprietor corroborator decarbonator decompressor decorticator demonstrator dephlegmator determinator disconnector dispossessor disseminator dissimulator domesticator electrofluor electromotor equilibrator expectorator expostulator expropriator exterminator exteroceptor extrapolator fractionator funambulator gesticulator hallucinator hydrogenator hyperreactor hypothecator impersonator impropriator improvisator incarcerator incorporator incriminator individuator interlocutor interoceptor interpolator interrogator investigator justificator lithotriptor magnetomotor matriculator methoxychlor minedetector miscegenator nocireceptor noncollector nonconductor nonreflector orchestrator participator perambulator peregrinator perseverator pontificator precipitator predominator preinspector premeditator preprocessor preseparator prestigiator prevaricator primogenitor proliferator pseudovector qualificator ratiocinator reciprocator recriminator refrigerator remonstrator renegotiator resuscitator reverberator rheoreceptor scarificator scintillator sensorimotor sequestrator significator stabilisator stabilizator subinspector subordinator testificator transgressor triangulator velociraptor versificator visceromotor