—n. 1. Archit. a. any prominent, continuous, horizontally projecting feature surmounting a wall or other construction, or dividing it horizontally for compositional purposes.
b. the uppermost member of a classical entablature, consisting of a bed molding, a corona, and a cymatium, with rows of dentils, modillions, etc., often placed between the bed molding and the corona.
2. any of various other ornamental horizontal moldings or bands, as for concealing hooks or rods from which curtains are hung or for supporting picture hooks.
3. a mass of snow, ice, etc., projecting over a mountain ridge.