'Karat' definitions:

Definition of 'karat'

From: WordNet
noun
The unit of measurement for the proportion of gold in an alloy; 18-karat gold is 75% gold; 24-karat gold is pure gold [syn: karat, carat, kt]

Definition of 'Karat'

From: GCIDE
  • Karat \Karat\ n. the unit of measurement for the proportion of gold in an alloy; 18-karat gold is 75 2.122e-314old; 24-karat gold is pure gold.
  • Syn: carat. [WordNet 1.5]