Definition of subnormal adjective from the Oxford Advanced Learner's Dictionary

     

    subnormal

     adjective
    adjective
    BrE BrE//ˌsʌbˈnɔːml//
     
    ; NAmE NAmE//ˌsʌbˈnɔːrml//
     
     
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  1. 1(specialist) lower than normal subnormal temperatures
  2. 2(sometimes offensive) having less than the normal level of intelligence educationally subnormal children