karat

from WordNet (r) 3.0 (2006)

karat
    n 1: 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}]

from The Collaborative International Dictionary of English v.0.48

Karat \Karat\ n.
   the unit of measurement for the proportion of gold in an
   alloy; 18-karat gold is 75 2.122e-314old; 24-karat gold is
   pure gold.

   Syn: carat.
        [WordNet 1.5]

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