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cardiologist (noun) a specialist in heart diseases.
A doctor who makes a special study of heart diseases and their cure is a cardiologist. Cardiology is the study and treatment of heart ailments.
- Dr. Christian Bernard of Cape Town, South Africa, is the cardiologist who pioneered human heart transplants.
- A cardiologist checks a patient's blood pressure, weight, and heart beat, and studies the patient's ECG, to diagnose problems related to heart and find a cure for them.