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tartar

noun

  1. cream of tartar, esp. the crude form present in grape juice and forming a reddish or whitish, crustlike deposit (argol) in wine casks
  2. a hard deposit on the teeth, consisting of saliva proteins, food deposits, various salts, as calcium phosphate, etc.; dental calculus

noun

  1. Tatar
  2. an irritable, violent, intractable person

adjective

See tartar in American Heritage Dictionary 4

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