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English definition of “chronic fatigue syndrome”

chronic fatigue syndrome

noun [U] uk   (UK also ME) us  
an illness, sometimes lasting for several years, in which a person's muscles and joints (= places where two bones are connected) hurt and they are generally very tiredDisorders of muscles and the nervous system
(Definition of chronic fatigue syndrome from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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