/ Dictionary / Index I invocate: Meaning and Definition of Find definitions for: in•vo•cate Pronunciation: (in'vu-kāt"), [key] — -cat•ed, -cat•ing. invoke. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. in vivo invocation Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language