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[per-i-kahr-dee-uh m] /ˌpɛr ɪˈkɑr di əm/
noun, plural pericardia
[per-i-kahr-dee-uh] /ˌpɛr ɪˈkɑr di ə/ (Show IPA).
the membranous sac enclosing the heart.
Origin of pericardium
1570-80; < New Latin < Greek perikárdion, noun use of neuter of perikárdios surrounding the heart, equivalent to peri- peri- + kardios, adj. derivative of kardía heart; cf. -cardium Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for pericardia
Historical Examples
  • Mr. Darwin writes of people who, catching turtles, drank the water that was found in their pericardia; it was pure and sweet.

    The Art of Travel Francis Galton
British Dictionary definitions for pericardia


noun (pl) -dia (-dɪə)
the membranous sac enclosing the heart
Derived Forms
pericardial, pericardiac, adjective
Word Origin
C16: via New Latin from Greek perikardion, from peri- + kardia heart
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for pericardia



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.

Online Etymology Dictionary, © 2010 Douglas Harper
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pericardia in Medicine

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.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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pericardia in Science
Plural pericardia
The membrane sac that encloses the heart in vertebrate animals.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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