n. A border of flowers in a garden, or along a wall or the side of a parterre.n. In architecture: Any flat rectangular molding the projection of which is much less than its width; a fascian. A lintel formed with voussoirs in the manner of an arch, but with the intrados horizontal—a common and vicious modern construction, but employed even in some Roman and medieval work in places where a true arch was not convenient, and when monoliths of sufficient size were not available. See cut of flat arch, under archn. The fillets between the flutes of an Ionic or a Corinthian column.