Carat



GRE Barron TOEFL

解释

GRE 红宝书

• n. ( 宝石重量单位) 克拉; ( 金子) 开
• ［同］ 近形词: karate ( 空手道) , caret ( 加字符号)

Webster Collegiate

I. *variant of karat II. noun

• Etymology: Middle English carrat measure of fineness in gold, from Middle French carat measure of fineness in gold or of weight in gems, from Italian carato, from Arabic qīrā? bean pod, a small weight, from Greek keration carob bean, a small weight, from diminutive of kerat-, keras horn — more at horn
• Date: 1555
• a unit of weight for precious stones equal to 200 milligrams

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