• synonyms


[per-i-kahr-dee-uh m]
noun, plural per·i·car·di·a [per-i-kahr-dee-uh] /ˌpɛr ɪˈkɑr di ə/. Anatomy.
  1. the membranous sac enclosing the heart.
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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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pericardium

Historical Examples of pericardium

British Dictionary definitions for pericardium


noun plural -dia (-dɪə)
  1. the membranous sac enclosing the heart
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Derived Formspericardial or pericardiac, adjective

Word Origin for pericardium

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

Word Origin and History for pericardium


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.

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Online Etymology Dictionary, © 2010 Douglas Harper

pericardium in Medicine


n. pl. per•i•car•di•a (-dē-ə)
  1. 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.heart sac theca cordis
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Related formsper′i•cardi•al (-dē-əl) null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

pericardium in Science


Plural pericardia
  1. The membrane sac that encloses the heart in vertebrate animals.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.