- gangrene, sphacelus, slough - necrotic tissue; a mortified or gangrenous part or mass
 --1 is a kind of pathology
 --1 has particulars:
- slough - a hollow filled with mud
 --2 is a kind of bog, peat bog
 
- slough - a stagnant swamp (especially as part of a bayou)
 --3 is a kind of swamp, swampland
 
- slough - any outer covering that can be shed or cast off (such as the cast-off skin of a snake)
 --4 is a kind of covering, natural covering, cover
 Derived form: verb slough1 
- slough - a stagnant swamp (especially as part of a bayou)