electromyography

noun

1. a device for recording electric currents from an active muscle to produce an electromyogram. Abbreviation: EMG

noun

1. med a technique for recording the electrical activity of muscles: used in the diagnosis of nerve and muscle disorders

n.

1. An instrument used in diagnosing neuromuscular disorders that produces an audio or visual record of the electrical activity of a skeletal muscle by means of an electrode inserted into the muscle or placed on the skin.