tartar

Noun

• an incrustation that forms on the teeth and gums

• a member of the Mongolian people of central Asia who invaded Russia in the 13th century

• a fiercely vigilant and unpleasant woman

• a salt used especially in baking powder

Related words

• Synonyms: 
  calculus , tophus , Tatar , Tartar , Mongol Tatar , dragon , cream of tartar , potassium bitartrate , potassium hydrogen tartrate