Pericardium



[per-i-kahr-dee-uh m] /ˌpɛr ɪˈkɑr di əm/

noun, plural pericardia
[per-i-kahr-dee-uh] /ˌpɛr ɪˈkɑr di ə/ (Show IPA). Anatomy.
1.
the membranous sac enclosing the heart.
/ˌpɛrɪˈkɑːdɪəm/
noun (pl) -dia (-dɪə)
1.
the membranous sac enclosing the heart
n.

early 15c., Latinized form of Greek perikardion “(membrane) around the heart” (Galen), from peri (prep.) “around, about” (see peri-) + kardia “heart” (see heart). Related: Pericardiac.

pericardium per·i·car·di·um (pěr’ĭ-kär’dē-əm)
n. pl. per·i·car·di·a (-dē-ə)
The fibroserous sac enclosing the heart and the roots of the great vessels, consisting of two layers: the visceral layer or epicardium, immediately surrounding the heart; and the outer parietal layer, which forms the sac and is lined with a serous membrane. Also called heart sac, theca cordis.
per’i·car’di·al (-dē-əl) or per’i·car’di·ac’ (-dē-āk’) adj.
pericardium
(pěr’ĭ-kär’dē-əm)
Plural pericardia
The membrane sac that encloses the heart in vertebrate animals.

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