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chronic fatigue syndrome
noun
: a disorder of unknown cause that is characterized by persistent profound fatigue usually accompanied by other symptoms (such as headache and tender lymph nodes) unrelated to any preexisting medical condition
—abbreviation CFS
Examples of chronic fatigue syndrome in a Sentence
Recent Examples on the Web
Illnesses and conditions like the flu, autoimmune disorders, chronic fatigue syndrome, and fibromyalgia can all raise your risk of experiencing pain.
—Heidi Cope, Health, 17 Aug. 2024
And Nath notes that rituximab, a drug that depletes antibody-producing B cells, wasn’t effective in a study of myalgic encephalomyelitis–chronic fatigue syndrome—another chronic illness thought to arise after an infection.
—Byjennifer Couzin-Frankel, science.org, 21 June 2024
Wright has also been open about her struggles with chronic fatigue syndrome and has been one of the few athletes in the world of surfing to use her sport as a site to protest violence against Black and brown people, including First Nations people in Australia.
—Frankie De La Cretaz, Them, 25 July 2024
Ribose supplements are often used to help improve athletic performance, reduce symptoms of chronic fatigue syndrome (CFS), and support overall cardiovascular health.
—Lauren Manaker Ms, Rdn, Health, 19 July 2024
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Word History
First Known Use
1947, in the meaning defined above
Time Traveler
The first known use of chronic fatigue syndrome was
in 1947
Dictionary Entries Near chronic fatigue syndrome
Cite this Entry
“Chronic fatigue syndrome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chronic%20fatigue%20syndrome. Accessed 21 Nov. 2024.
Medical Definition
chronic fatigue syndrome
noun
: a disorder of uncertain cause that is characterized by persistent profound fatigue usually accompanied by impairment in short-term memory or concentration, sore throat, tender lymph nodes, muscle or joint pain, and headache unrelated to any preexisting medical condition and that typically has an onset at about 30 years of age
—abbreviation CFS
called also myalgic encephalomyelitis
More from Merriam-Webster on chronic fatigue syndrome
Britannica.com: Encyclopedia article about chronic fatigue syndrome
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