Definition of carat in English:

carat

Syllabification: car·at
Pronunciation: /ˈkarət
 
/

noun

  • 1A unit of weight for precious stones and pearls, now equivalent to 200 milligrams: a half-carat diamond ring
    More example sentences
    • Within the gem trade, however, especially among those who deal with diamonds, it is one of the ever-cute 4 Cs: color, clarity, cut, and carats, or carat weight.
    • However, one does not need to be an expert on the Hope Diamond to know that its correct weight is 45.52 carats, a weight that has been accurately reported in reputable scholarly publications for most of the latter half of the last century.
    • They have finally finished their masterpiece: a necklace that is made up of diamonds with a total weight of 2800 carats!
  • 2 chiefly British spelling of karat.

Origin

late Middle English (sense 2): from French, from Italian carato, from Arabic ḳīrāṭ (a unit of weight), from Greek keration 'fruit of the carob' (also denoting a unit of weight), diminutive of keras 'horn', with reference to the elongated seedpod of the carob.

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