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n. pl. en·do·car·di·a (-dē-ə)
The thin serous membrane, composed of endothelial tissue, that lines the interior of the heart.

[New Latin : endo- + Greek kardiā, heart; see kerd- in Indo-European roots.]

en′do·car′di·al adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌɛndəʊˈkɑːdɪəl) or


1. (Anatomy) of or relating to the endocardium
2. (Anatomy) within the heart
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌɛn doʊˈkɑr di əl)

1. situated within the heart.
2. Also, en•do•car•di•ac (ˌɛn doʊˈkɑr diˌæk) of or pertaining to the endocardium.
[1840–50; endo- + Greek kardí(a) heart + -al1; or endocardi (um) + -al1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Tuberculous constrictive pericarditis has been reported with myocardial and endocardial involvement in a case series.8 It has been suggested that tubercular insult to the heart may result in involvement of all three layers with varying severity and the hallmark of differentiation between constrictive and restrictive disease appears to be a diligent attempt at identification of a thickened pericardium.
Involvement can be classified as follows: (1) pericarditis, (2) myocarditis, (3) endocardial (valve) involvement, (4) conduction defects, (5) coronary arteritis, and (6) granulomatous aortitis (1).
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In the DEEP study, the cardiac surgeon and electrophysiologist work as a team to perform a minimally invasive epicardial (outside the heart) surgical ablation and endocardial (inside the heart) catheter-based ablation.
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