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tartar

Pronunciation: /ˈtɑːtə/
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Definition of tartar

noun

[mass noun]
  • a hard calcified deposit that forms on the teeth and contributes to their decay.
  • a deposit of impure potassium hydrogen tartrate formed during the fermentation of wine.

Derivatives

tartaric

adjective

Origin:

late Middle English: via medieval Latin from medieval Greek tartaron, of unknown origin

tartar in other Oxford dictionaries

Definition of tartar in the US English dictionary