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Definition of Exercise ball
1. Noun. A soft, elastic ball with a diameter of approximately 35 to 85 centimetres, used in physical therapy and exercise. ¹
¹ Source: wiktionary.com
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1. Noun. A soft, elastic ball with a diameter of approximately 35 to 85 centimetres, used in physical therapy and exercise. ¹
¹ Source: wiktionary.com