Medical Dictionary

chronic fatigue syndrome

noun

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
March 30, 2015
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