cardiacmembrane

noun

UK /ˈkɑːdiæk ˈmembreɪn/

US /ˈkɑːrdiæk ˈmembreɪn/

A thin layer that covers or protects the heart.

The doctor explained that the cardiac membrane helps keep the heart safe.

SYNONYMS

heart membrane pericardium cardiac sac heart lining

RELATED WORDS

heart pericardial fluid cardiac muscle chest cavity

OTHER MEANINGS

2. A membrane surrounding the heart that can become inflamed.

Inflammation of the cardiac membrane can cause chest pain.

3. A tissue layer studied in heart anatomy classes.

Students labeled the cardiac membrane on the heart diagram.

4. A protective covering that cushions the heart during movement.

The cardiac membrane reduces friction as the heart beats.