s-then-iks]
| 1. | (used with a plural verb ) gymnastic exercises designed to develop physical health and vigor, usually performed with little or no special apparatus. |
| 2. | (used with a singular verb ) the art, practice, or a session of such exercises. |
calisthenics cal·is·then·ics (kāl'ĭs-thěn'ĭks)
pl.n.
Gymnastic exercises, such as sit-ups, designed to develop muscular tone and promote physical fitness.