Car·di·ac a.
1. Anat. Pertaining to, resembling, or hear the heart; as, the cardiac arteries; the cardiac, or left, end of the stomach.
2. Med. Exciting action in the heart, through the medium of the stomach; cordial; stimulant.
Cardiac passion Med. cardialgia; heartburn. [Archaic]
Cardiac wheel. Mach. See Heart wheel.