Noun tartar has 4 senses
- cream of tartar, tartar, potassium hydrogen tartrate - a salt used especially in baking powder
--1 is a kind of salt
- dragon, tartar - a fiercely vigilant and unpleasant woman
--2 is a kind of unpleasant woman, disagreeable woman
- Tatar, Tartar, Mongol Tatar - a member of the Mongolian people of central Asia who invaded Russia in the 13th century
--3 is a kind of Mongol, Mongolian
- tartar, calculus, tophus - an incrustation that forms on the teeth and gums
--4 is a kind of crust, incrustation, encrustation
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