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



    BrE BrE//ˌderəˈlɪkʃn//
    ; NAmE NAmE//ˌderəˈlɪkʃn//
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  1. 1[uncountable] the state of being derelict industrial/urban dereliction a house in a state of dereliction
  2. 2[uncountable, singular] dereliction of duty (formal or law) the fact of deliberately not doing what you ought to do, especially when it is part of your job The police officers were found guilty of serious dereliction of duty.
  3. Word Originlate 16th cent.: from Latin derelictio(n-), from the verb derelinquere, from de- ‘completely’ + relinquere ‘forsake’.
See the Oxford Advanced American Dictionary entry: dereliction