The Collaborative International Dictionary
Batardeau
Batardeau \Ba`tar*deau"\, n. [F.]
A cofferdam.
--Brande & C.(Mil.) A wall built across the ditch of a fortification, with a sluice gate to regulate the height of water in the ditch on both sides of the wall. [1913 Webster] ||
Wiktionary
batardeau
n. 1 A cofferdam. 2 (context military English) A wall built across the ditch of a fortification, with a sluice gate to regulate the height of water in the ditch on both sides of the wall.
Usage examples of "batardeau".
For a moment I considered taking his batardeau to replace the knife I had lost so many chiliads ago, but the thought of wielding a poisoned blade was repugnant.