/ Dictionary / Index I incircle: Meaning and Definition of Find definitions for: in•cir•cle Pronunciation: (in'sûr"kul), [key] — n. Geom. a circle inscribed within a triangle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. incipit incise Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language