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Definition of neurosis noun from the Oxford Advanced American Dictionary

     

    neurosis

     noun
    noun
    NAmE//nʊˈroʊsəs//
     
    (pl. neuroses
    NAmE//nʊˈroʊsiz//
     
    )
    [countable, uncountable]
     
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  1. 1(medical) a mental illness in which a person suffers strong feelings of fear and worry
  2. 2a strong fear or worry synonym anxiety
See the Oxford Advanced Learner's Dictionary entry: neurosis