electrocardiograph

noun Medicine/Medical.

1. a galvanometric device that detects and records the minute differences in electric potential caused by heart action and occurring between different parts of the body: used in the diagnosis of heart disease.

noun

1. an instrument for recording the electrical activity of the heartAbbreviation: ECG

n.

1. An instrument used in the detection and diagnosis of heart abnormalities that measures electrical potentials on the body surface and generates a record of the electrical currents associated with heart muscle activity.cardiograph