Ōrgues, n.

(ōrgz), n. [Fr. orgue, pl. orgues, from Lat. organum, Gr. ὄργανον. See ORGAN.] (Mil.) (a.) A defensive apparatus of the nature of a portcullis, or hearse, consisting of long, thick pieces of timber, pointed and shod with iron, hung over a gateway, to be let down in case of attack. (b.) An instrument consisting of several musket-barrels arranged in a parallel form, so that a match or train may connect with all their touch-holes, and a discharge be secured almost or quite simultaneously.