1. any of several vasoconstrictor substances (trade name Hypertensin) that cause narrowing of blood vessels; [syn: angiotensin, angiotonin, Hypertensin]
WordNet (r) 3.0 (2006):
angiotonin
n 1: any of several vasoconstrictor substances (trade name
Hypertensin) that cause narrowing of blood vessels [syn:
angiotensin, angiotonin, Hypertensin]