Mammoth Uncensored Word List:
116 words ending with se, 13 letters long

anagrammatise anticlockwise antisepticise apothegmatise artificialise betasecretase blanchisseuse boardinghouse bouillabaisse bureaucratese bureaucratise clearinghouse cocarboxylase collateralise commercialese commercialise conceptualise connaturalise contextualise corinthianise countinghouse decarboxylase decriminalise dehydrogenase dehydrogenise dematerialise demythologise denationalise depersonalise dereligionise desulphydrase desynchronise dextroglucose diphosphatase disnaturalise documentarise empyreumatise endopeptidase enhypostatise entrepreneuse epigrammatise epithelialise fractionalise functionalise galactosidase glucuronidase governmentese hemicellulose hyaluronidase hyperimmunise hyperpolarise hyposensitise immaterialise impersonalise individualise industrialise irrationalise mathematicise melodramatise metagrabolise metagrobolise metaphysicise misparaphrase monooxygenase monumentalise nephrectomise neuraminidase nonenterprise occidentalise orthogonalise overadvertise overdramatise overemphasise overfertilise overglamorise oversocialise particularise pedestrianise penicillinase perimenopause phenomenalise phosphokinase phospholipase phosphorylase platitudinise preinitialise pronominalise proverbialise provincialise psychoanalyse reacclimatise recrystallise rehospitalise rematerialise remythologise renationalise republicanise resynchronise resystematise revolutionise sacerdotalise splenectomise stockpurchase streptokinase structuralise subcategorise subspecialise substantivise suggestionise superhumanise theatricalise thrombokinase transcriptase transistorise ventriloquise vernacularise