batardeau noun2 •A cofferdam.An experiment was tried during the day upon the dykes of the citadel, which, as before stated, are fed by means of a sluice opposite the Scheldt, and separated from those of the city by a batardeau. — 1833 •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. formsbatardeaus
