cardiac
cardiac — adjective
1. concerning the heart — the muscular organ that pumps blood — and the diseases or
concerning the heart — the muscular organ that pumps blood — and the diseases or medical treatments connected with it.
The paramedics treated a man who had gone into cardiac arrest at the train station.
collocation: cardiac arrest
After his cardiac surgery, Mr. Okonkwo spent a week recovering in the hospital.
collocation: cardiac surgery
Dr. Okafor explained that the patient's cardiac muscle was not receiving enough oxygen.
Regular exercise and a healthy diet can lower your chance of developing cardiac disease.
The Watanabe family received a phone call about their father's sudden cardiac event.
- heart
informal equivalent; use 'heart' in everyday speech (e.g. heart surgery), reserve 'cardiac' for medical/technical contexts.
- coronary
narrower meaning — refers specifically to the arteries that supply blood to the heart muscle; not interchangeable with all uses of 'cardiac'.
- cardiovascular
broader term encompassing both the heart and the blood vessels (arteries, veins, capillaries).
文法句型
cardiac + noun
用法筆記
Cardiac is almost always used directly before a noun (attributive position). Predicative uses — e.g. 'His condition is cardiac' — are extremely rare in standard English. In everyday conversation, the simpler word 'heart' is preferred; use cardiac in medical writing, clinical reports, or when a precise technical register is needed.