n. [ L. derelictio. ] 1. The act of leaving with an intention not to reclaim or resume; an utter forsaking abandonment. [ 1913 Webster ] Cession or dereliction, actual or tacit, of other powers. Burke. [ 1913 Webster ] 2. A neglect or omission as if by willful abandonment. [ 1913 Webster ] A total dereliction of military duties. Sir W. Scott. [ 1913 Webster ] 3. The state of being left or abandoned. [ 1913 Webster ] 4. (Law) A retiring of the sea, occasioning a change of high-water mark, whereby land is gained. [ 1913 Webster ] | 
