ELECTROCARDIOGRAPH

[elec.tro.car.dio.graph] n (1913): an instrument for recording the changes of electrical potential occurring during the heartbeat used esp. in diagnosing abnormalities of heart action -- elec.tro.car.dio.graph.ic adj -- elec.tro.car.dio.graph.i.cal.ly adv -- elec.tro.car.di.og.ra.phy n