The definition of a slough is the skin of a snake or a layer or covering that has been discarded.(noun)
An example of slough is the skin of an onion that's been removed and thrown away.
Slough is defined as to shed or throw away.(verb)
An example of slough is to exfoliate the skin on your body.
See slough in Webster's New World College Dictionary
Origin: ME slouh, akin to Ger schlauch, a skin, bag < IE base *sleu-, to glide, slip > Latvian sl'užât, to slide
Origin: < the n.
Origin: after Slough of Despond, a deep swamp in Bunyan's Pilgrim's Progressdeep, hopeless dejection or discouragement
Origin: ME slowe < OE sloh, akin to MLowG slōch, swamp < IE base *sklēk, wet > slack
See slough in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old English slōh.
Origin: Middle English slughe.
Learn more about slough