abnormality abnormality /ˌæbˌnɔːrˈmælɪti/

noun

1. () An abnormal physical condition resulting from defective genes or developmental deficiencies  ( abnormalcy [American] , abnormality )
   an abnormal physical condition resulting from defective genes or developmental deficiencies
   
2. Behavior that breaches the rule, etiquette, custom or morality  ( abnormality , irregularity )
   behavior that breaches the rule, etiquette, custom or morality
     The irregularity in his heartbeat required medical attention.
   The irregularity in his heartbeat required medical attention.
   
3. Marked strangeness as a consequence of being abnormal  ( abnormality , freakishness )
   marked strangeness as a consequence of being abnormal
   
4. Retardation sufficient to fall outside the normal range of intelligence  ( abnormality , mental defectiveness )
   retardation sufficient to fall outside the normal range of intelligence