karat
/ˈkæ.ɹət/ noun C2- A metric unit of mass equal to exactly 200 mg, chiefly used for measuring precious stones and pearls.
- Any of several small units of mass used for measuring precious stones and pearls, equivalent to 189–212 mg.
- A 24-point scale used to measure the purity of gold. · 18-carat gold is 75% gold by mass. 24-carat gold is pure.
Plural karats
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