/ Dictionary / Index I inspissate: Meaning and Definition of Find definitions for: in•spis•sate Pronunciation: (in-spis'āt), [key] — -sat•ed, -sat•ing. to thicken, as by evaporation; make or become dense. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inspissate (Thesaurus) inspirit inst. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language