myo·​car·​di·​tis ˌmī-ə-(ˌ)kär-ˈdī-təs How to pronounce myocarditis (audio)
: inflammation of the myocardium

Examples of myocarditis in a Sentence

Recent Examples on the Web Although vaccines and viruses, not just those related to COVID-19, can cause myocarditis, instances are rare. L'oreal Thompson Payton, Fortune Well, 25 July 2023 But antibody levels in study participants were consistent with levels in people who didn't develop myocarditis, so this was also ruled out. Adrianna Rodriguez, USA TODAY, 5 May 2023 But the risk of myocarditis after getting sick with COVID-19 is far higher than after getting the vaccine, according to Kuno and Yasuhara. Jennifer Miao, ABC News, 24 Jan. 2023 What's more, health officials in the United Kingdom reported a similarly unusual increase in severe myocarditis, or heart inflammation, among 10 babies who had another enterovirus called coxsackievirus. Erika Edwards, NBC News, 6 July 2023 Related: Covid vaccines averted 3 million deaths in U.S., according to new study The researchers behind the study explored each of the leading possibilities as to the root cause of myocarditis after vaccination. Elaine Chen Reprints, STAT, 5 May 2023 One study, an analysis of 22 previous studies, found that the risk of the conditions including myocarditis in people who received a Covid-19 vaccine wasn’t significantly different from that for non-Covid-19 vaccines such as those against flu, polio and measles. Peter Loftus, WSJ, 11 Apr. 2022 Some parents still fear the risk of myocarditis, or inflammation of the heart muscle, which was found to be an unwanted side effect of the Moderna mRNA side effect in boys and young men aged 12 to 39 years old. Sophie Mellor, Fortune, 7 Feb. 2022 Davies, who plays for Bayern Munich, won’t participate in Canada’s three games in this qualifying window; he’s temporarily sidelined due to signs of the heart condition myocarditis. Kevin Baxter, Los Angeles Times, 25 Jan. 2022 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'myocarditis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


New Latin

First Known Use

circa 1848, in the meaning defined above

Time Traveler
The first known use of myocarditis was circa 1848

Dictionary Entries Near myocarditis

Cite this Entry

“Myocarditis.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2023.

Medical Definition


myo·​car·​di·​tis ˌmī-ə-(ˌ)kär-ˈdīt-əs How to pronounce myocarditis (audio)
: inflammation of the myocardium

More from Merriam-Webster on myocarditis

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