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Definition isotonic in American English

isotonic adjective

adjective
/ˌaɪsəˈtɑnɪk/
1

an isotonic drink or other liquid replaces substances that your body needs but has lost, for example because you have done a lot of physical exercise

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2

used for describing a type of exercise in which the muscles remain equally tense as you make them tighter, for example when lifting weights

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Definition isotonic in American English