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