1. Any horizontal flat member or molding or group of moldings projecting slightly from a wall plane and usually marking a division in the wall. Also called band molding or band course.2.Asmall, flat molding, broad, but of small projection, rectangular or slightly convex in profile, used to decorate a surface either as a continuous strip or formed into various shapes. Also called fillet, list. 3.A fascia on the architrave of an entablature.