Fou`gade'Fou`gasse' noun (Mil.) A small mine, in the form of a well sunk from the surface of the ground, charged with explosive and projectiles. It is made in a position likely to be occupied by the enemy. Found on http://www.encyclo.co.uk/webster/F/68
piece of improvised artillery
• (n.) Alt. of Fougasse
Fou`gade'