heartbeat

abnormally slow heartbeat

n a stethoscope placed on the pregnant woman's abdomen to listen for the fetal heartbeat

a specialized bit of heart tissue that controls the heartbeat n

characterized by reduced cardiac output and rapid heartbeat and circulatory insufficiency and pallor n

characterized by reduced cardiac output and rapid heartbeat and circulatory insufficiency and pallor n an instance of agitation of the earth's crust n an unpleasant or disappointing surprise n a pile of sheaves of grain set on end in a field to dry