/ Dictionary / Index I incision: Meaning and Definition of Find definitions for: in•ci•sion Pronunciation: (in-sizh'un), [key] — n. a cut, gash, or notch. the act of incising. a cutting into, esp. for surgical purposes. incisiveness; keenness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: incision (Thesaurus) incised incisive Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language