trou-de-loup Meaning, Definition & Usage

  1. noun a sloping pit with a stake in the middle used as an obstacle to the enemy

WordNet

Trou"-de-loup" noun
Etymology
F. trou hole + de of + loup wolf.
Wordforms
plural
plural Trous-de-loup
Definitions
  1. (Mil.) A pit in the form of an inverted cone or pyramid, constructed as an obstacle to the approach of an enemy, and having a pointed stake in the middle. The pits are called also trapholes.

Webster 1913