Pericardium

Chamber's Twientieth Century Dictionary · 1908 · p. 76

per-i-kär′di-um, n. ( an at. ) the bag or sac composed of two layers which surrounds the heart.— adjs. Pericar′diac , Pericar′dial , Pericar′dian .— n. Per i cardī′tis , inflammation of the pericardium. [Late L.,—Gr. perikardion — peri , around, kardia , heart.]