electromyograph
/ɪˌlɛktroʊˈmaɪəˌɡræf/
noun
- A machine that records the electrical activity of muscles.
- The electromyograph displayed a graph of the muscle signals on the screen.
- The doctor used an electromyograph to check the patient's nerve function.
- Researchers connected the electromyograph to the athlete's leg to study muscle fatigue.