carat

[ kar-uh t ]
/ ˈkær ət /
|

noun

a unit of weight in gemstones, 200 milligrams (about 3 grains of troy or avoirdupois weight). Abbreviation: c., ct.

Origin of carat

1545–55; < Medieval Latin carratus (used by alchemists) < Arabic qīrāṭ weight of 4 grains < Greek kerátion carob bean, weight of 3.333 grains, literally, little horn, equivalent to kerat- (stem of kéras) horn + -ion diminutive suffix
Can be confusedcarat caret carrot karat

Definition for carat (2 of 2)

karat

or car·at

[ kar-uh t ]
/ ˈkær ət /

noun

a unit for measuring the fineness of gold, pure gold being 24 karats fine. Abbreviation: k., kt.

Origin of karat

First recorded in 1550–60; spelling variant of carat
Can be confusedcarat caret carrot karat
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for carat

British Dictionary definitions for carat (1 of 2)

carat

/ (ˈkærət) /

noun

a measure of the weight of precious stones, esp diamonds. It was formerly defined as 3.17 grains, but the international carat is now standardized as 0.20 grams
Usual US spelling: karat a measure of the proportion of gold in an alloy, expressed as the number of parts of gold in 24 parts of the alloy

Word Origin for 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

British Dictionary definitions for carat (2 of 2)

karat

/ (ˈkærət) /

noun

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 alloyAlso spelt (in Britain and certain other countries): carat

Word Origin for karat

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012