myalgic encephalomyelitis

noun

British, medical
: an illness that makes a person feel very tired for a very long time and that often includes other symptoms such as headaches and weakness

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Parker, for instance, is trying to see a specialist for myalgic encephalomyelitis/chronic fatigue syndrome, a form of debilitating fatigue that is common with long COVID. Rebecca Nagle, The Atlantic, 1 Apr. 2025 People who have had COVID-19 are more likely to develop chronic fatigue syndrome, officially known as myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Melissa Rudy, Fox News, 26 Jan. 2025 Around 22% of long Covid patients are unemployed and unable to work due to chronic fatigue syndrome or myalgic encephalomyelitis and brain fog. Anuradha Varanasi, Forbes, 6 Nov. 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 See All Example Sentences for myalgic encephalomyelitis

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“Myalgic encephalomyelitis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/myalgic%20encephalomyelitis. Accessed 7 Jul. 2026.

Medical Definition

myalgic encephalomyelitis

noun
chiefly British
: chronic fatigue syndrome
abbreviation ME
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