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myocardium

American  
[mahy-uh-kahr-dee-uhm] / ˌmaɪ əˈkɑr di əm /

noun

Anatomy.
myocardia plural
  1. the muscular substance of the heart.


myocardium British  
/ ˌmaɪəʊˈkɑːdɪəm /

noun

  1. the muscular tissue of the 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

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of myocardium

First recorded in 1875–80; myo- + -cardium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The Nature Biomedical Engineering study described the material as an intravascularly infused extracellular matrix biomaterial made from decellularized, enzymatically digested, and fractionated ventricular myocardium.

From Science Daily May 5, 2026

They then fit a silicone wrapping around it, which acted as a soft, synthetic myocardium, or muscular lining.

From Science Daily Dec. 8, 2023

Purkinje fibers conduct the impulse from the apex up the ventricular myocardium, causing the ventricles to contract.

From Textbooks Jun. 9, 2022

The myocardium consists of the heart muscle cells that make up the middle layer and the bulk of the heart wall.

From Textbooks Jun. 9, 2022

He stepped on his switch and said, “There are two lacerations of the myocardium; a one-point-five-centimeter laceration in the right ventricle and a one-point-eight-centimeter laceration penetrating the left ventricle.”

From "American Gods" by Neil Gaiman

I had rather severe attacks of myocardia that summer, three so bad that I prescribed bed rest of several days for myself.

From Time Magazine Archive

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