kärd-ē-ă-lĭ-st

Definitions

1. noun

A medical doctor specializing in the diagnosis, treatment, and prevention of disorders and diseases of the heart and circulatory system.

“After a few months, she decided to see a cardiologist to check on her irregular heartbeat.”

2. noun

A specialist in the study of the heart and its function in the circulatory system.

“The cardiologist carefully examined the patient’s ECG to diagnose the cause of the heart arrhythmia.”