an ornamental projecting piece that forms the top edge of a building, pillar, etc, esp the top projecting part of the entablature of a classical building
an ornamental plaster moulding between the wall and ceiling of a room
a decorative band of metal or wood used to conceal curtain fixtures
an overhanging mass of snow or ice on a mountain
corniced adj
cornicing noun
[early French cornice from Italian cornice]