n.
Pronunciation: ' ker- ə t, ' ka-r ə t
Function: 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 q ī r ā ṭ 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