Pronunciation: (thī-ok'tik), [key]
1. Biochem.an organic acid, C8H14O2S2, that occurs as a coenzyme in hydrogen transfer reactions in certain plants, microorganisms, and animals and functions as a growth factor for many species of bacteria and protozoa.
2. Pharm.a preparation of thioctic acid used to treat liver disease and poisoning from amanita mushrooms.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.