Definition of "cardiac" in English

adjective

1. (biology, medicine) Pertaining to the heart.

   • the cardiac arteries

2. (biology, medicine) Pertaining to the cardia of the stomach; cardial (cardial is the usual adjective in this sense).

3. (medicine, archaic) Exciting action in the heart, through the medium of the stomach; cordial; stimulant.

noun

1. A person with heart disease.

2. (dated) Heart disease.