Definitions

1. adjective

relating to the heart or blood vessels; cardiological

“The doctor was a renowned cardiac specialist.”

2. noun

a branch of medicine that deals with the study and treatment of heart and blood vessel disorders

“Cardiac care is a vital service for people with heart conditions.”

3. noun

a muscle or nerve related to the heart

“The cardiac nerve was damaged in the accident.”

4. noun

the heart or the part of a plant that pumps sap

“The cardiac system of the plant was severely damaged.”