Niche \Niche\, 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. --Evelun.

Source: Webster's Revised Unabridged Dictionary (1913)