myo·​si·​tis | \ ˌmī-ə-ˈsī-təs How to pronounce myositis (audio) \

Definition of myositis

: soreness of voluntary muscle due to inflammation

Examples of myositis in a Sentence

Recent Examples on the Web Franco Patino first got into biomedical engineering to help his mother, who suffers from inclusion body myositis, a rare condition that weakens damages and muscles. Brenna Ehrlich, Rolling Stone, 7 Nov. 2021 The cause was myositis, a muscle weakening and wasting disease, said a son, Christian Blood. Washington Post, 29 Oct. 2021 Since 2014, when the public learned of the disease (inclusion-body myositis) that so drastically affects Krukow’s ability to walk, Kuiper’s friendship and behind-the-scenes devotion have been invaluable. Bruce Jenkins, San Francisco Chronicle, 8 June 2021 The tumor, known as a thymoma, caused a neuromuscular disorder called myasthenia gravis that attacked the communication between his nerve cells and muscles, as well as inflammation and breakdown of muscle tissue called myositis. S. Wayne Carter Jr.,, 25 May 2021 He was diagnosed in 2017 with inclusion body myositis, a slow-moving degenerative condition that’s causing his muscles to atrophy. Gary Graff, cleveland, 18 Oct. 2020 Four years earlier, Frampton had been diagnosed with inclusion body myositis, a degenerative muscle disorder that would gradually rob him of his ability to play guitar. Jordan Runtagh,, 26 Nov. 2019 Pretty bold statement for a man who’s been diagnosed with inclusion body myositis, a degenerative muscle disease that eventually will take the pick out of his fingers and the guitar off his shoulder. Chuck Yarborough,, 9 Aug. 2019 Giants fans are well aware of Krukow’s condition, known as inclusion-body myositis, a progressive muscle disorder that affects the legs, arms, fingers and wrists. Bruce Jenkins,, 5 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'myositis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of myositis

circa 1807, in the meaning defined above

History and Etymology for myositis

New Latin, irregular from Greek mys muscle, mouse

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Time Traveler for myositis

Time Traveler

The first known use of myositis was circa 1807

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Last Updated

19 Nov 2021

Cite this Entry

“Myositis.” Dictionary, Merriam-Webster, Accessed 2 Dec. 2021.

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More Definitions for myositis


myo·​si·​tis | \ ˌmī-ə-ˈsīt-əs How to pronounce myositis (audio) \

Medical Definition of myositis

: muscular discomfort or pain from infection or an unknown cause

More from Merriam-Webster on myositis Encyclopedia article about myositis


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