slough

A depression or hollow, usually filled with deep mud or mire.

A stagnant swamp, marsh, bog, or pond, especially as part of a bayou, inlet, or backwater.

A state of deep despair or moral degradation.

The dead outer skin shed by a reptile or amphibian.

A layer or mass of dead tissue separated from surrounding living tissue, as in a wound, sore, or inflammation.

An outer layer or covering that is shed or removed.

To be cast off or shed; come off.

To shed a slough.

To separate from surrounding living tissue. Used of dead tissue.

To cast off or shed (skin or a covering).