CORNISH, or CORNICE, in Architecture, the uppermost member of the entablature of a column, as that which crowns the order. See Architecture, Chap. I. and the Plates.

Corniche, is also used, in general, for all little projections in masonry or joinery, even where there are no columns, as the corniche of a chimney, beaufet, &c.

Corniche Ring, in a piece of ordnance, is that next from the muzzle-ring, backward.