Pronunciation: (der"u-lik'shun), [key]
1. deliberate or conscious neglect; negligence; delinquency: dereliction of duty.
2. the act of abandoning something.
3. the state of being abandoned.
4. Law.a leaving dry of land by recession of the water line.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.