myocardium
(noun) the middle muscular layer of the heart wall
Source: WordNet® 3.1
myocardium (plural myocardiums or myocardia)
(anatomy, cardiology) The muscular substance of the heart; the middle of the three layers forming the outer wall of the human heart.
• (muscular substance of the heart): cardiac muscle, heart muscle
• (muscular substance of the heart): muscle
Source: Wiktionary
My`o*car"di*um, n. Etym: [NL., fr. Gr. (Anat.)
Definition: The main substance of the muscular wall of the heart inclosed between the epicardium and endocardium.
Source: Webster’s Unabridged Dictionary 1913 Edition
12 February 2025
(noun) an abnormal enlargement of the colon; can be congenital (as in Hirschsprung’s disease) or acquired (as when children refuse to defecate)
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