In fortification, a tenaille is a low work, constructed in the main ditch, upon the lines of defense, between the bastions, before the curtain, composed two faces, and sometimes of two flanks and a small curtain.
Related term(s): Fortification; Bastion; Curtain; Face (Fortification); Flank (Fortification); Ravelin
Category: Castles and Fortifications
Source information: Wilhelm, Thomas. A Military Dictionary and Gazetteer. Philadelphia: L.R. Hamersly & Co., 1881. 577.