| Main Entry: | exercise ball |
| Part of Speech: | n |
| Definition: | any of various large balls used in exercise routines or physical therapy |
| Example: | Exercise balls are also called balance ball, body ball, fitness ball, gym ball, physioball, Pilates ball, sports ball, stability ball, Swedish ball, Swiss ball, therapy ball, or yoga ball. |
| Etymology: | 1907 |
| a scrap or morsel of food left at a meal. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |