cardiac muscle
Americannoun
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a specialized form of striated muscle occurring in the hearts of vertebrates.
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the myocardium.
Etymology
Origin of cardiac muscle
First recorded in 1900–05
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.
These cysts are most commonly found in neurons, but they also appear frequently in skeletal and cardiac muscle.
From Science Daily ● Jan. 27, 2026
Heart attacks typically kill millions of cardiac muscle cells, leaving the heart in a weakened state.
From Science Daily ● Apr. 26, 2024
The physiological significance of these findings will become clear when the functional difference between skeletal and cardiac muscle is considered.
From Science Daily ● Oct. 25, 2023
Like smooth muscle, cardiac muscle cells contain only one nucleus.
From Textbooks ● Jan. 1, 2015
It has no action in any way resembling digitalis; by increasing the irritability of the cardiac muscle, its prolonged use rather tends to fatigue than to rest the heart.
From All About Coffee by William H. (William Harrison) Ukers
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
