A written recording of the electrical activity of the heart. Electrocardiograms are used to determine the condition of the heart and to diagnose heart disease.
electrocardiogram e·lec·tro·car·di·o·gram (ĭ-lěk'trō-kär'dē-ə-grām')
n.
Abbr. ECG, EKG The curve traced by an electrocardiograph. Also called cardiogram.