Cardiology (noun)

1. The branch of medicine concerned with the study and treatment of diseases of the heart and blood vessels.
2. The scientific study of the heart and its functions.

Origin:

Mid 19th century. derived from the greek words 'kardia' meaning heart, and 'logos' meaning study or science. it refers to the study of the heart and its functions.

Examples:

1. She is a specialist in cardiology, and has written several research papers on the subject.
2. The patient was referred to a cardiologist for further evaluation of his heart condition.
3. Cardiology is a rapidly advancing field, with new treatments and techniques being developed all the time.
4. The cardiology department at the hospital is equipped with the latest diagnostic equipment.
5. The cardiology conference featured presentations from leading experts in the field.