Search Result for "angiotensin i":
Wordnet 3.0

NOUN (1)

1. a physiologically inactive form of angiotensin that is the precursor to angiotensin II; 



WordNet (r) 3.0 (2006):

angiotensin I
    n 1: a physiologically inactive form of angiotensin that is the
         precursor to angiotensin II