carat

• Nom désignant deux mesures principales : une unité de poids pour les pierres précieuses, égale à 200 milligrammes, et une unité de pureté de l'or dans un alliage, l'or pur étant de 24 carats.

A noun with two primary meanings: a unit of weight for precious stones equal to 200 milligrams, and a unit of measurement for the purity of gold in an alloy, where 24-karat gold is pure gold.

1. Unit of weight for gemstonesB2formal

   A unit of weight used for measuring precious stones, equal to 200 milligrams.

   Carat (unité de masse des pierres précieuses)

   • The diamond weighed 2 carats.
   • She bought a 1.5-carat sapphire ring.
   • The jeweler carefully measured the carat weight of the ruby.

2. Measure of gold purityB2formal

   A unit of measurement indicating the proportion of pure gold in an alloy, where 24 carats is pure gold.

   carat (titre de l'or)

   • This necklace is made of 18-carat gold.
   • 24-carat gold is too soft for most jewelry.
   • The ring is stamped with a 14-carat mark.

   Synonymeskarat