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English definition of “schizophrenia”

schizophrenia

noun [U] uk   /ˌskɪt.səˈfriː.ni.ə/ us  
a serious mental illness in which someone cannot understand what is real and what is imaginary: paranoid schizophreniaMental and psychiatric disorders informal behaviour in which a person appears to have two different personalitiesMental and psychiatric disorders
(Definition of schizophrenia from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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