1) Antioxidant food preservative 2) Common preservative 3) Food preservative 4) Food preservative familiarly 5) Food preservative inits 6) Food preservative letters 7) Food-preserving agt 8) Rancidity retardant 9) Rancidity retarder 
Type: Abbreviation Definitions: 1. Abbreviation for butylated hydroxytoluene.
BHT is a trade name for Butylated hydroxy toluene.
butylated hydroxytoluene: the antioxidant CHO, used to retard rancidity in foods, pharmaceuticals, and other products containing fat or oil.