Carat

Alternative forms

 * karat

Pronunciation

 * , {{SAMPA|/"k{r@t/}}

Noun

 * 1) A unit of weight for precious stones and pearls, equivalent to 200 milligrams.
 * 2) Formerly, any of several units of weight, varying from 189 to 212 mg, the weight of a carob seed.
 * 3) A measure of the purity of gold, pure gold being 24 carats.