Trous-de-loup, n. pl.

(tru'-dŭ-lōō'), n. pl. [Fr. trou, hole, de, of, and loup, wolf.] (Mil.) Rows of pits in the form of inverted cones or pyramids, used as an obstacle to the approaching enemy, each pit having a pointed stake in the middle. The pits are called also trap-holes.