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noun Trou-de-loup  n.  (pl. trous-de-loup)  (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. 
 
 
 
  
 Collaborative International Dictionary of English 0.48 
 
  
 
 
  
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