In fortification, this is the vertical or nearly vertical side of the ditch nearest the besiegers, and opposite to the scarp or escarp. It is generally faced or revetted in permanent works, to render descent into the ditch difficult.
Related term(s): Fortification; Besiege; Scarp; Escarp; Revet; Revetment
Category: Castles and Fortifications
Source information: Wilhelm, Thomas. A Military Dictionary and Gazetteer. Philadelphia: L.R. Hamersly & Co., 1881. 118.