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myocardium

[mahy-uh-kahr-dee-uh m]
noun, plural my·o·car·di·a [mahy-uh-kahr-dee-uh] /ˌmaɪ əˈkɑr di ə/. Anatomy.
  1. the muscular substance of the heart.

Origin of myocardium

First recorded in 1875–80; myo- + -cardium
Related formsmy·o·car·di·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for myocardia

myocardium

noun plural -dia (-dɪə)
  1. the muscular tissue of the heart

Word Origin for myocardium

C19: myo- + cardium, from Greek 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 myocardia

myocardium

n.

1866, from myo- + Latinized form of Greek kardia "heart" (see heart). Related: Myocardial; myocarditis.

Online Etymology Dictionary, © 2010 Douglas Harper
myocardia in Medicine

myocardium

[mī′ō-kär′dē-əm]
n. pl. my•o•car•di•a (-dē-ə)
  1. The middle layer of the heart, consisting of cardiac muscle.
Related formsmy′o•car′di•al adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.