Electrocardiogram

n. (Cardiology) graphic record of electrical pulses given off by the heart created using an electrocardiograph, ECG (used to diagnose heart disease)

For other meanings of ECG, see ECG (disambiguation) An electrocardiogram (ECG or EKG, abbreviated from the German Elektrokardiogramm) is a graphic produced by an electrocardiograph, which records the electrical activity of the heart over time. Its name is made of different parts: electro, because it's related to electronics, cardio, Greek for heart, gram, a Greek root meaning "to write". Analysis of the various waves and normal vectors of depolarization and repolarization yields important diagnostic information.
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Electrocardiogram /elec·tro·car·dio·gram/ a graphic tracing of the variations in electrical potential caused by the excitation of the heart muscle [more]Electrocardiogram - Community and Resources

Noun
1. a graphical recording of the cardiac cycle produced by an electrocardiograph
(synonym) cardiogram, EKG, ECG
(hypernym) graph, graphical record
(part-holonym) checkup, medical checkup, medical examination, medical exam, medical, health check

n. (old spell.>electrocardiogram) electrocardiogram, (Cardiology) graphic record of electrical pulses given off by the heart created using an electrocardiograph