The Collaborative International Dictionary of English v.0.48:
Bow \Bow\ (b[=o]), n. [Icel. b[=o]gr shoulder, bow of a ship.
1. (Naut.) The bending or rounded part of a ship forward; the
stream or prow.
2. (Naut.) One who rows in the forward part of a boat; the
Bow chaser (Naut.), a gun in the bow for firing while
chasing another vessel. --Totten.
Bow piece, a piece of ordnance carried at the bow of a
On the bow (Naut.), on that part of the horizon within
45[deg] on either side of the line ahead. --Totten.