Definition of hysteria noun from the Oxford Advanced American Dictionary

     

    hysteria

     noun
    noun
    NAmE//hɪˈstɛriə//
     
    , NAmE//hɪˈstɪriə//
     
    [uncountable]
     
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  1. 1a state of extreme excitement, fear, or anger in which a person, or a group of people, loses control of their emotions and starts to cry, laugh, etc. There was mass hysteria when the band came on stage. A note of hysteria crept into her voice.
  2. 2(disapproving) an extremely excited and exaggerated way of behaving or reacting to an event the usual media hysteria that surrounds royal visits public hysteria about AIDS
  3. 3(medical) a condition in which someone experiences violent or extreme emotions that they cannot control, especially as a result of shock
See the Oxford Advanced Learner's Dictionary entry: hysteria