1 N-UNCOUNT 牙垢;牙石 Tartar is a hard yellowish substance that forms on your teeth and causes them to decay if it is not removed. 牙垢;牙石
2 N-COUNT 凶悍的人,脾气暴戾的人;(尤指)悍妇 If you describe someone, especially a woman in a position of authority, as a tartar, you mean that they are fierce, bad-tempered, and strict. 凶悍的人,脾气暴戾的人;(尤指)悍妇 [informal]
3 See also: cream of tartar
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