A swamp or shallow lake system, often a backwater to a larger body of water. The explorers navigated through the slough, careful to avoid the deeper parts of the swamp.
A state of moral degradation or spiritual dejection. After the failure of his business, he found himself in a slough of despondency.
A situation characterized by lack of progress or activity. The project was stuck in a slough, with no clear direction or momentum.
A layer or mass of dead tissue separated from living tissue in a wound, or the shed outer skin of a reptile. The surgeon removed the slough to allow healthy tissue to heal.