/ Dictionary / Index A angiotensin: Meaning and Definition of Find definitions for: an•gi•o•ten•sin Pronunciation: (an"jē-ō-ten'sin), [key] — n. Biochem. any of three oligopeptides occurring in plasma, an inactive formand two varietiesandthat elevate blood pressure and stimulate the adrenal cortex to secrete aldosterone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: angiotensin (Thesaurus) angiospermous angiya Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language