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.
n. (Bot.) A West Indian plant of the Pineapple family (Nidularium Karatas). [ 1913 Webster ]
pos>n. [ Japanese, empty hand . ] a traditional Japanese system of unarmed combat; sharp blows and kicks are given to pressure-sensitive points on the body of the opponent. [ WordNet 1.5 ]