slough

Noun

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

• a stagnant swamp (especially as part of a bayou)

• a hollow filled with mud

• necrotic tissue; a mortified or gangrenous part or mass

Verb

• cast off hair, skin, horn, or feathers
  • our dog sheds every Spring
    

Related words

• Synonyms: 
  gangrene , sphacelus , shed , molt , exuviate , moult