dereliction /ˌderəˈlɪkʃən/ noun Learner's definition of DERELICTION
formal
1 [noncount]
a : the act of no longer caring for, using, or doing something : the act of abandoning something抛弃；弃置；废弃 b : the condition of being no longer cared for荒废；破旧不堪 2
[singular] law : failure to do your job or duty : failure to do what you should do玩忽职守；渎职 ◊ Dereliction is usually used to refer to the crime that is committed when a military officer or police officer fails to do an important part of his or her job.*dereliction通常指军官或警官在执行重要任务时未尽职而犯的罪行。