| NOUN | act | isometrics, isometric exercise | muscle-building exercises (or a system of musclebuilding exercises) involving muscular contractions against resistance without movement (the muscles contracts but the length of the muscle does not change) |
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| Meaning | Muscle-building exercises (or a system of musclebuilding exercises) involving muscular contractions against resistance without movement (the muscles contracts but the length of the muscle does not change). | |
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| Synonym | isometric exercise | |
| Broader | exercise, exercising, physical exercise, physical exertion, workout | The activity of exerting your muscles in various ways to keep fit |
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