encephalomyocarditis

noun

en·​ceph·​a·​lo·​myo·​car·​di·​tis in-ˌse-fə-lō-ˌmī-ə-kär-ˈdī-təs How to pronounce encephalomyocarditis (audio)
: an acute febrile disease of numerous vertebrates and especially swine caused by a picornavirus (Cardiovirus rueckerti) and marked by degeneration and inflammation of skeletal and cardiac muscle and lesions of the central nervous system

Word History

Etymology

New Latin

First Known Use

1947, in the meaning defined above

Time Traveler
The first known use of encephalomyocarditis was in 1947

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Cite this Entry

“Encephalomyocarditis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/encephalomyocarditis. Accessed 6 Nov. 2025.

Medical Definition

encephalomyocarditis

noun
en·​ceph·​a·​lo·​myo·​car·​di·​tis -ˌmī-ə-kär-ˈdīt-əs How to pronounce encephalomyocarditis (audio)
: an acute febrile viral disease that affects numerous vertebrates including humans but is of serious clinical significance mostly in swine, that is caused by any of several strains of a picornavirus (genus Cardiovirus and especially C. rueckerti), and that in swine is characterized especially by degeneration and inflammation of skeletal and cardiac muscle and lesions of the central nervous system
Last Updated: - Definition revised
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