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English definition of “sleep disorder”

sleep disorder

noun [C] uk   /ˈsliːp.dɪˈsɔːd.ər/ us    /ˈsliːp dɪˈsɔr.dər/ specialized
any of several medical conditions that prevent people sleeping in a normal way
(Definition of sleep disorder from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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