1. the smooth membrane lining the inside of the heart
Usage: medical

Examples

• The endocardium provides a smooth surface for blood flow through the heart chambers.
• Endocarditis is an infection of the endocardium that can be life-threatening.
• The cardiologist examined the endocardium using an echocardiogram.
• Damage to the endocardium can affect the heart’s ability to pump blood efficiently.
• The endocardium is the innermost layer of the heart wall.
• Researchers studied how certain medications affect the endocardium.