the outer layer of the skin of a snake, which is cast off periodically.

Pathology . a mass or layer of dead tissue separated from the surrounding or underlying tissue.

anything that is shed or cast off.

Cards . a discard.

to be or become shed or cast off, as the slough of a snake.

to cast off a slough.

Pathology . to separate from the sound flesh, as a slough.

Cards . to discard a card or cards.

to dispose or get rid of; cast (often fol. by off )

to slough off a bad habit.

to shed as or like a slough.

Cards . to discard (cards). ?

slough over, to treat as slight or trivial

to slough over a friend's mistake.