/ Thesaurus / A Synonyms of angiotensin i Find synonyms for: Noun1. angiotensin I, angiotensin, angiotonin, Hypertensinusage: a physiologically inactive form of angiotensin that is the precursor to angiotensin IIWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: torrid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language