| Noun | 1. | tartar - a salt used especially in baking powdersalt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal) | |
| 2. | tartar - a fiercely vigilant and unpleasant woman | |
| 3. | Tartar - a member of the Mongolian people of central Asia who invaded Russia in the 13th century | |
| 4. | tartar - an incrustation that forms on the teeth and gums | |