Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. In military fortification, a trench or ditch covered with a parapet that provides communication between two trenches, particularly the rear and front lines. Boyaus were typically constructed in a zigzag pattern to prevent exposure to direct enemy fire from the front.
  • n. A line, drawn winding about, in order to enclose several tracts of land, or to attack some works.

from the GNU version of the Collaborative International Dictionary of English

  • n. A winding or zigzag trench forming a path or communication from one siegework to another, to a magazine, etc.

from The Century Dictionary and Cyclopedia

  • n. In fort, a ditch covered with a parapet, serving as a means of communication between two trenches, especially between the first and third parallels. Also called a zigzag or an approach.

Etymologies

From French. (Wiktionary)

Examples

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  • n. - (pl. -aux ) winding trench; zigzag

    May 16, 2008