Definitions for "Sponson"
One of the armored projections fitted with gun ports, used on modern war vessels.
the pontoon-like portion of the hull that provides hydrodynamic lift; in the three-point configuration common to current unlimited racing craft, one sponson is forward on each side of the main hull.
On each side of the hull toward the bow, the members that resemble pontoons and on which the boat rides.
One of the triangular platforms in front of, and abaft, the paddle boxes of a steamboat.
One of the slanting supports under the guards of a steamboat.
1. outboard projection of upper deck for fitting searchlight, etc.; 2. fore and aft projection to protect paddle box