Demi-tenaillons are very similar to tenaillons, excepting that their short faces are directed, perpendicular to the faces of the ravelin, about one-third or one-half down from the flanked angle.
Related term(s): Tenaillon; Face (Fortification); Ravelin; Angle, Flanked; Bastion; Counterscarp
Category: Castles and Fortifications
Source information: Wilhelm, Thomas. A Military Dictionary and Gazetteer. Philadelphia: L.R. Hamersly & Co., 1881. 577.