Mitrailleuse

‖Mi′tra′illeuse″ (?), n. [F., fr. mitrailler to fire grapeshot, fr. mitraille old iron, grapeshot, dim. of OF. mite a mite.] (Mil.) A breech-loading machine gun consisting of a number of barrels fitted together, so arranged that the barrels can be fired simultaneously, or successively, and rapidly.