Pronunciation: (koun"tur-ir'i-tunt), [key]
1. Med.an agent for producing inflammation in superficial tissues to relieve pain or inflammation in deeper structures.
2. any irritation or annoyance that draws attention away from another.
Med.of or acting as a counterirritant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.