/ Dictionary / Index C captopril: Meaning and Definition of Find definitions for: cap•to•pril Pronunciation: (kap'tu-pril), [key] — n. Pharm. a white to whitish crystalline powder, CHNOS, used as an antihypertensive. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: captopril (Thesaurus) captivity captor Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language