what is the meaning of tartar
tartar. n. 1. (Dentistry) dentistry a hard crusty deposit on the teeth, consisting of food, cellular debris, and mineral salts.2. (Elements & Compounds) Also called: argol a brownish-red substance consisting mainly of potassium hydrogen tartrate, present in grape juice and deposited during the fermentation of wine.artar. n. 1. (Dentistry) dentistry a hard crusty deposit on the teeth, consisting of food, cellular debris, and mineral salts.