slough - noun

necrotic tissue; a mortified or gangrenous part or mass

a hollow filled with mud

a stagnant swamp (especially as part of a bayou)

any outer covering that can be shed or cast off (such as the cast-off skin of a snake)

slough - verb

• cast off hair, skin, horn, or feathers

slough - thesaurus

exuviate   gangrene   molt   moult   shed   sphacelus