English

Definition of tartar noun from the Oxford Advanced Learner's Dictionary

     

    tartar

     noun
    noun
    BrE BrE//ˈtɑːtə(r)//
     
    ; NAmE NAmE//ˈtɑːrtər//
     
    Mouth and teeth
     
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  1. 1[uncountable] a hard substance that forms on teeth a build-up of tartar See related entries: Mouth and teeth
  2. 2[countable] (old-fashioned) a person in a position of authority who is very bad-tempered
  3. Word Origin late Middle English: via medieval Latin from medieval Greek tartaron, of unknown origin.
See the Oxford Advanced American Dictionary entry: tartar

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