Cardiac describes anything that's connected or related to the heart. During a cardiac exam, a doctor listens to your heartbeat and takes your pulse.

The adjective cardiac is most often used in a medical context: a doctor who operates on people's hearts is a cardiac surgeon, and an irregular heart beat is called "cardiac arrhythmia." It's common for both medical and non-medical people to call a heart attack "cardiac arrest." The word comes from the French cardiaque, which is rooted in the Greek kardiakos, "pertaining to the heart," from kardia, "heart."

Definitions of cardiac

adj of or relating to the heart

cardiac arrest”

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