/dis"keuhs/ , n. , pl. discuses, disci /dis"uy/ .
1. a circular disk more than 7 in. (18 cm) in diameter and 2.2 lb. (1 kg) in weight, usually wooden with a metal rim and thicker in the center than at the edge, for throwing for distance in athletic competition.
2. the sport of throwing this disk for distance.
[ 1650-60; dískos a quoit, discus, disk, deriv. of diskeîn to throw ]