Är'chei-trāve, n.

n. [Fr. & It. architrave, from Gr. & Lat. prefix archi, equiv. to Eng. arch, q. v., and It. trave, Lat. trabs, beam.] (Arch.) (a.) The lower division of an entablature, or that part which rests immediately on the column. (b.) The ornamental molding running round the exterior curve of an arch. (c.) A molding above a door, or window, and the like. Oxf. Gloss.