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myocarditis

American

[mahy-oh-kahr-dahy-tis] / ˌmaɪ oʊ kɑrˈdaɪ tɪs /

noun

Pathology.

inflammation of the myocardium.

myocarditis British

/ ˌmaɪəʊkɑːˈdaɪtɪs /

noun

inflammation of the heart muscle

"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

Etymology

Origin of myocarditis

First recorded in 1865–70; myo- + carditis

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.

He noted that a COVID-19 infection is about 10 times more likely to cause myocarditis than an mRNA-based COVID-19 vaccine, in addition to the many other risks posed by the disease.

From Science Daily • Dec. 27, 2025

Bakken returned to competition in 2024, having been kept out since 2022 with the heart condition myocarditis.

From BBC • Dec. 23, 2025

Other studies have found that the risk of myocarditis from a COVID-19 infection is higher than from vaccination.

From MarketWatch • Dec. 1, 2025

What’s more, another 2024 study showed that people who developed myocarditis after vaccination had fewer complications than those who developed the condition after getting infected with COVID-19.

From Salon • Sep. 5, 2025

It is my medical opinion that in Hawaii you had an episode of myocarditis triggered by a viral infection.

From "Everything, Everything" by Nicola Yoon

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023