Pronunciation: (kal"us-then'iks), [key]
1. (used with a pl. v.) gymnastic exercises designed to develop physical health and vigor, usually performed with little or no special apparatus.
2. (used with a sing. v.) the art, practice, or a session of such exercises. Also,callisthenics.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.