Boyaus

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Boyau \Boy"au\, n.; pl. {Boyaux} or {Boyaus}. [F. boyau gut, a
     long and narrow place, and (of trenches) a branch. See
     {Bowel}.] (Fort.)
     A winding or zigzag trench forming a path or communication
     from one siegework to another, to a magazine, etc.
     [1913 Webster]