Definitions

1. noun

the muscular layer of the heart, comprising the cardiac muscle cells.

“The myocardium is highly sensitive to changes in oxygen levels in the blood.”

2. anatomy

the innermost layer of the heart wall, composed of cardiac muscle.

“During an autopsy, the pathologist examined the myocardium for signs of disease.”

3. biology

the muscular tissue of the heart.

“In the study of cardiovascular disease, researchers focused on the myocardium’s response to stress.”