cardiologist
n.n. a doctor who specializes in the health of the heart and blood vessels. They treat problems like high blood pressure, heart attacks, and heart failure.
n. a medical practitioner who specializes in the diagnosis and treatment of diseases and disorders of the heart and blood vessels.
The patient visited a cardiologist for a routine check-up.
After experiencing chest pain during exercise, the doctor referred him to a cardiologist for a stress test.
The cardiologist explained that while the patient's cholesterol levels were high, a healthy lifestyle and medication could significantly reduce the risk of future heart disease.
From cardio- + -logist.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Last updated May 19, 2026