Pericardium

[,perɪ'kɑːdɪəm] or [,pɛrɪ'kɑrdɪəm]

Definition

(noun.) a serous membrane with two layers that surrounds the heart.

Typed by Leigh--From WordNet

Definition

(n.) The double baglike fold of serous membrane which incloses the heart.

Edited by Estelle

Definition

n. (anat.) the bag or sac composed of two layers which surrounds the heart.—adjs. Pericar′diac Pericar′dial Pericar′dian.—n. Pericardī′tis inflammation of the pericardium.

Typed by Larry