TARTAR
- a crust on the teeth [n TARTARS] : TARTARIC [adj]
- hard deposit on the teeth
- member of the Mongolian and Turkish tribes who overran Asia and much of eastern Europe in the Middle Ages
- descendant of this people, now inhabiting parts of Russia and Central Asia
- Tatar
- savage, ill-tempered, or intractable person
- to deal with someone or something that proves unexpectedly troublesome or powerful