/ Dictionary / Index B BHT: Meaning and Definition of Find definitions for: BHT Pronunciation: [key] — Chem., Pharm. Chem.,Pharm. butylated hydroxytoluene: the antioxidant CHO, used to retard rancidity in foods, pharmaceuticals, and other products containing fat or oil. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bhp Bhumibol Adulyadej Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language