Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Medieval Latin
Origin: tartarum

tartar

 noun
     
NEW! See related topics: HUMAN
tar‧tar
1 [uncountable]HBH a hard substance that forms on your teeth
2 [countable] informal British English someone who has a violent temper:
She's a real tartar.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.
 
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