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kar·atalso car·at (kăr′ət)
n. Abbr. k or kt.
A unit of measure for the fineness of gold, equal to 1/24 part. Pure gold is 24 karat; gold that is 50 percent pure is 12 karat.
[Variant of carat.]
(Units) US and Canadian a measure of the proportion of gold in an alloy, expressed as the number of parts of gold in 24 parts of the alloy. Also spelt (in Britain and certain other countries): carat
[C16: from Old French, from Medieval Latin carratus, from Arabic qīrāt weight of four grains, carat, from Greek keration a little horn, from keras horn]
or car•at(ˈkær ət)
A unit of weight equal to 200 mg (3.1 grains). Also used as a measure of gold purity (per 24 parts gold alloy).
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|Noun||1.||karat - the unit of measurement for the proportion of gold in an alloy; 18-karat gold is 75% gold; 24-karat gold is pure gold|