Niche (ni:S, nItS), n. [F., fr. It. nicchia, prop., a shell-like recess in a wall, fr. nicchio a shellfish, mussel, fr. L. mytilus.]
A cavity, hollow, or recess, generally within the thickness of a wall, for a statue, bust, or other erect ornament. hence, any similar position, literal or figurative.
Images defended from the injuries of the weather by niches of stone wherein they are placed.
© Webster 1913.