cardiology

1 of 2

noun (1)

car·​di·​ol·​o·​gy ˌkär-dē-ˈä-lə-jē 

: the study of the heart and its action and diseases

cardiological

ˌkär-dē-ə-ˈlä-ji-kəl 

adjective

cardiologist

ˌkär-dē-ˈä-lə-jist 

noun

cardiologist

2 of 2

noun (2)

car·​di·​ol·​o·​gist ˌkär-dē-ˈä-lə-jist 

plural -s

: a specialist in cardiology

Did you know?

The Heart of Cardiology

The root card- (closely related to cord) shows up in many heart-related words. Cardiologists frequently find themselves studying cardiograms, the charts of heart activity, made by machines called cardiographs. Heart attacks, and deaths caused by them, have both declined as a result of better medical emergency procedures, cholesterol-lowering drugs, and a decline in smoking. But the factors likely to actually improve heart health, such as better diets and more cardiovascular exercise (exercise, such as running, that improves the heart and blood vessels), haven't made any progress at all. So we should all be prepared to perform cardiopulmonary resuscitation (an emergency procedure done on someone whose heart has stopped, to get the heart and lungs working again).

Examples of cardiology in a Sentence

Noun (1)

a doctor who specializes in cardiology

Recent Examples on the Web

Noun

The new hospital, which will include a modernized neonatal intensive care unit, intends to provide integrated care across gynecology, pregnancy, labor and delivery, menopause, and cardiology. — Catriona Marangi, CNBC, 15 Sep. 2026

For some people, xylitol can offset sugar consumption when used in moderation and judiciously, which may benefit cardiometabolic health, said Deepak Talreja, MD, FACC, chief of cardiology at Sentara Health. — Lauren Manaker Ms, HEALTH, 8 Sep. 2026

The Sixth Medical Center of the Chinese PLA General Hospital, widely known as 301 Hospital, achieved this milestone in modern cardiology when its Senior Department of Cardiology performed this pioneering operation. — Mrigakshi Dixit, Interesting Engineering, 7 Sep. 2026

That person might be a candidate for a different job at the outset of a career or a job adjustment later, Brian Becerra, a cardiologist and director of sports cardiology at UC Irvine, told STAT. — Elizabeth Cooney, STAT, 3 Sep. 2026

Word History

Etymology

Noun (1)

International Scientific Vocabulary

First Known Use

Noun (1)

1837, in the meaning defined above

Rhymes for cardiology

• anthology
• apology
• astrology
• biology
• christology
• chronology
• conchology
• cosmology
• cryptology
• cytology
• doxology
• ecology

Medical Definition

cardiology

noun

car·​di·​ol·​o·​gy ˌkärd-ē-ˈäl-ə-jē 

plural cardiologies

: the study of the heart and its action and diseases

cardiological

-ē-ə-ˈläj-i-kəl 

adjective

cardiologist

-ē-ˈäl-ə-jəst 

noun