tenaille
/təˈneɪl/
noun
- A fortification shaped like a pair of pincers, with two outward-facing flanks that create a reentrant angle, used to defend a fortress or city wall.
- Visitors to the historic site can still see the remains of the tenaille near the moat.
- The old fortress had a tenaille built into the outer wall to protect the main gate.
- Military engineers designed the tenaille to allow defenders to fire on attackers from two sides.