Origin: Greek suffix -ology
Cardiology has 2 different meanings across 1 category:
the branch of medicine dealing with the heart and its diseases
"After graduating from medical school, she specialized in cardiology to treat patients with complex heart conditions."
The study of the structure, function, and disorders of the heart.
"Cardiology is the medical specialty dedicated to studying the structure, function, and disorders of the heart."
In plain English: Cardiology is the medical field that focuses on studying and treating diseases of the heart.
"She decided to study cardiology because she loves understanding how hearts work."
Usage: Use this term to refer specifically to the medical specialty rather than general knowledge about hearts. Avoid using it as a verb or in casual conversation where "heart health" would suffice.
The word cardiology comes from combining Greek roots meaning heart and the study of science. It entered English to describe the medical field dedicated to understanding how hearts function.