Definition of "myocardium" [‖My•o•car•di•um]

• The muscular tissue of the heart. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Indeed, although heart can stand some degree of hypoxia, this situation is incompatible with its normal bioenergetic function, and ischemic heart disease with compromised oxygen supply to the myocardium is a common cause of heart failure This idea is clearly illustrated in the present study by the concomitant severe decrease in contractile activity and PCr concentration measured in Control hearts perfused under low oxygen conditions compared with previously reported values"
• "It also protects skin from wrinkles and black spots and prevents such geriatric diseases as cerebral haemorrhage, myocardium and brain infarction by removing acid effete matters in time."
• "The heart is almost entirely muscle, the myocardium, and is strong enough to lift approximately 3,000 pounds, close to the weight of a compact car."