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Definition of: cardiac
(kär′dē·ak) Med. adjective
1. Pertaining to, situated near, or affecting the heart or the cardia.
2. Of, pertaining to, or designating the upper esophageal orifice of the stomach. Also car·di·a·cal (kär·dī′ə·kəl).
—noun
1. One suffering from a heart disease.
2. A cardiac remedy or stimulant; a cordial.
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