Definition of hypersensitivity noun from the Oxford Advanced Learner's Dictionary

     

    hypersensitivity

     noun
    noun
    BrE BrE//ˌhaɪpəˌsensəˈtɪvəti//
     
    ; NAmE NAmE//ˌhaɪpərˌsensəˈtɪvəti//
     
    [uncountable]
     
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  1. 1hypersensitivity (to something) a medical condition which causes the body to have extreme physical reactions to particular substances, medicines, light, etc. patients with hypersensitivity to the drug
  2. 2hypersensitivity (to something) the quality of being very easily offended his hypersensitivity to any kind of criticism