Batardeau
Ba`tar*deau"\, n. [F.]1. A cofferdam. --Brande & C. 2. (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.| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
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