(n) a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles, Syn. cardiograph
(n) diagnostic procedure consisting of recording the activity of the heart electronically with a cardiograph (and producing a cardiogram), Syn. electrocardiography
n. [ Gr. kardi`a heart + -graph. ] (Med.) An instrument which, when placed in contact with the chest, will register graphically the comparative duration and intensity of the heart's movements. [ 1913 Webster ]