1. 
   Trou de loup
   In medieval fortification, a trou de loup (French for "wolf hole"; plural trous de loup, also commonly referred to as a tiger pit in the East) was a type of booby trap or defensive obstacle. Each trou de loup consisted of a conical pit about 2 m (6 ft 6 in) deep and 1.2 to 2 m (3.9 to 6.5 ft) wide ...
   Found op http://en.wikipedia.org/wiki/Trou_de_loup
   
   
2. 
   trou-de-loup
   [n] - a sloping pit with a stake in the middle used as an obstacle to the enemy
   Found op http://www.webdictionary.co.uk/definition.php?query=trou-de-loup
   
   
3. 
   trou-de-loup
   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. ... Origin: F. Trou = hole, de = of, loup = wolf. ... (28 Oct 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?trou-de-loup
   
   
4. 
   trou-de-loup
   noun a sloping pit with a stake in the middle used as an obstacle to the enemy
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=trou-de-loup
   
   
5. 
   Trou-de-loup
   • (n.) 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.
   Found op http://thinkexist.com/dictionary/meaning/trou-de-loup/
   
   
6. 
   Trou-De-Loup
   A trou-de-loup or traphole was 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.
   Found op http://www.probertencyclopaedia.com/browse/FT.HTM
   
   
7. 
   Trous-de-loup
   • (pl. ) of Trou-de-loup
   Found op http://thinkexist.com/dictionary/meaning/trous-de-loup/
   
   

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