Chemistry, Pharmacology.

butylated hydroxytoluene: the antioxidant C15H24O, used to retard rancidity in foods, pharmaceuticals, and other products containing fat or oil.

Origin of BHT

First recorded in 1960–65 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for bht


[ bē′āch-tē ]


A crystalline phenolic antioxidant used to preserve fats and oils, especially in foods.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.