In fortification, a demi-gorge is half the gorge or entrance into the bastion. This is not taken directly from angle to angle, where the bastion joins the curtain, but from the angle of the flank to the center of the bastion, or the angle which the two curtains would make by their prolongation.
Related term(s): Fortification; Gorge; Bastion; Curtain; Angle of the Flank; Lunette
Category: Castles and Fortifications
Source information: Wilhelm, Thomas. A Military Dictionary and Gazetteer. Philadelphia: L.R. Hamersly & Co., 1881. 130.