DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   carat
       n 1: a unit of weight for precious stones = 200 mg
       2: the unit of measurement for the proportion of gold in an
          alloy; 18-karat gold is 75% gold; 24-karat gold is pure gold
          [syn: karat, carat, kt]