Dictionary
guai•a•col
Pronunciation: (gwī'u-kōl", -kôl"), [key]—
n. Pharm.
a slightly yellowish, aromatic, crystalline substance, C
7H
8O
2, resembling creosote and usually obtained from guaiacum resin: used in medicine chiefly as an expectorant and local anesthetic.
Also called methylcatechol. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.