encephalomyelitis

noun

en·​ceph·​a·​lo·​my·​eli·​tis in-ˌse-fə-lō-ˌmī-ə-ˈlī-təs How to pronounce encephalomyelitis (audio)
plural encephalomyelitides in-ˌse-fə-lō-ˌmī-ə-ˈli-tə-ˌdēz How to pronounce encephalomyelitis (audio)
: concurrent inflammation of the brain and spinal cord
especially : equine encephalitis

Examples of encephalomyelitis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Murdoch was diagnosed with myalgic encephalomyelitis more than two decades ago, before starting Belle and Sebastian. Jonathan Cohen, SPIN, 24 Jan. 2023 Myalgic encephalomyelitis/chronic fatigue syndrome, or ME/CFS, is a serious long-term illness, in which people have overwhelming fatigue that is not improved by rest. Sandee Lamotte, CNN, 11 Jan. 2023 Two cases of encephalomyelitis — inflammation in the brain and spinal cord — have been reported, both in previously healthy gay men in their 30s. Apoorva Mandavilli, BostonGlobe.com, 26 Sep. 2022 Only a couple dozen doctors specialize in myalgic encephalomyelitis, or chronic fatigue syndrome (ME/CFS). Ed Yong, The Atlantic, 26 Sep. 2022 See All Example Sentences for encephalomyelitis

Word History

Etymology

New Latin

First Known Use

1908, in the meaning defined above

Time Traveler
The first known use of encephalomyelitis was in 1908

Browse Nearby Words

Cite this Entry

“Encephalomyelitis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/encephalomyelitis. Accessed 9 Sep. 2025.

Medical Definition

encephalomyelitis

noun
en·​ceph·​a·​lo·​my·​eli·​tis in-ˌsef-ə-lō-ˌmī-ə-ˈlīt-əs How to pronounce encephalomyelitis (audio)
plural encephalomyelitides -ə-ˈlit-ə-ˌdēz How to pronounce encephalomyelitis (audio)
encephalomyelitic adjective

More from Merriam-Webster on encephalomyelitis

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!