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Meaning of trou-de-loup

trou-de-loup

Pronunciation: (trd"l-'), [key]
— pl. trous-de-loup
  1. a conical or pyramidal pit with a pointed stake fixed vertically in the center, rows of which are dug in front of a fortification to hinder an enemy's approach, formerly used chiefly against cavalry.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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