chronic fatigue syndrome

noun

Definition of chronic fatigue syndrome

: 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

Binchet, a resident of Napa County, has a rare, disabling illness called myalgic encephalomyelitis/chronic fatigue syndrome. — Bernard J. Wolfson, latimes.com, "Did your health plan deny you care? You can fight back. Here’s how," 5 July 2019 People can suffer from chronic fatigue syndrome for months or years at a time — and about 90% go undiagnosed, according to the CDC. — Caroline Picard, Good Housekeeping, "If You're Feeling Tired All the Time, You Might Have Chronic Fatigue Syndrome," 17 May 2019 Stanford University School of Medicine in Palo Alto, California, has fired a prominent researcher who studies the parasitic disease toxoplasmosis as well as chronic fatigue syndrome (CFS), citing unspecified behavioral violations. — Meredith Wadman, Science | AAAS, "Chronic fatigue scientist fired after conduct complaints, Stanford says," 4 June 2019 With chronic fatigue syndrome, rest doesn't take away the fatigue and physical exertion can make the symptoms worse. — Caroline Picard, Good Housekeeping, "If You're Feeling Tired All the Time, You Might Have Chronic Fatigue Syndrome," 17 May 2019 But the type of fatigue associated with conditions like lupus, fibromyalgia, and chronic fatigue syndrome is an entirely different beast. — Caitlin Flynn, Allure, "7 Things You Shouldn't Say to Someone With a Chronic or Invisible Illness," 16 Oct. 2018 For example, if you were previously diagnosed with fibromyalgia or chronic fatigue syndrome, you will be excluded. — Rafal Tokarz, Health.com, "The Lyme Disease Complication You Don't Know About—But Should," 31 May 2018 Let’s say your friend has chronic fatigue syndrome and is having a hard time with ever-present exhaustion. — Carolyn L. Todd, SELF, "How to Support a Friend Who’s Just Been Diagnosed With a Chronic Illness," 23 May 2018 Yet it was given what many advocates say is a misleading set of diagnostic criteria and a trivializing name, chronic fatigue syndrome, by researchers at the U.S. Centers for Disease Control 30 years ago. — Megan Doherty, Chicago Reader, "ME myalgic encephalomyelitis chronic fatigue syndrome CFS Millions Missing Depaul University CDC," 10 May 2018

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

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Last Updated

13 Jul 2019

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The first known use of chronic fatigue syndrome was in 1947

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More Definitions for chronic fatigue syndrome

chronic fatigue syndrome

noun

English Language Learners Definition of chronic fatigue syndrome

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

See the full definition for chronic fatigue syndrome in the English Language Learners Dictionary

chronic fatigue syndrome

noun

Medical Definition of chronic fatigue syndrome

: 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