cardio

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 ]

a. (Physiol.) Of or pertaining to, or produced by, a cardiograph. [ 1913 Webster ]

n. 1. Description of the heart. [ Webster 1913 Suppl. ]

2. (Physiol.) Examination of heart activity using a cardiograph. [ Webster 1913 Suppl. ]

n. [ Gr. kardio-eidh`s heart-shaped; kardi`a heart + e'i^dos shape. ] (Math.) An algebraic curve, so called from its resemblance to a heart. [ 1913 Webster ]

a. (Physiol.) Checking or arresting the heart's action. [ 1913 Webster ]

n. [ Gr. kardi`a heart + -ology. ] The science which treats of the heart and its functions. [ 1913 Webster ]

n. [ Gr. kardi`a heart + -metry. ] (Med.) Measurement of the heart, as by percussion or auscultation. [ 1913 Webster ]

n. An emergency procedure to revive heart and lung function in persons whose heart has apparently stopped beating, involving forced respiration, periodic pressure on the heart by pushing on the chest, and sometimes electrical or mechanical equipment. It is often referred to by the acronym CPR. [ PJC ]