Look up: sponson

1. Sponson
   Sponsons are projections from the sides of a watercraft, for protection, stability, or the mounting of equipment such as armaments or lifeboats, etc. They extend a hull dimension at or below the waterline and serve to increase flotation or add lift when underway. Sponsons are commonly used on jetsk...
   Found on http://en.wikipedia.org/wiki/Sponson
   
   
2. sponson
   a projection from a hull to give lateral stability on the water Category: Transport
   Found on http://www.mijnwoordenboek.nl/definition
   
   
3. Sponson
   Spon'son noun (Shipbuilding) (a) One of the triangular platforms in front of, and abaft, the paddle boxes of a steamboat. (b) One of the slanting supports under the guards of a steamboat. (c) One of the armored projections ...
   Found on http://www.encyclo.co.uk/webster/S/170
   
   
4. Sponson
   • (n.) One of the slanting supports under the guards of a steamboat. • (n.) One of the triangular platforms in front of, and abaft, the paddle boxes of a steamboat. • (n.) One of the armored projections fitted with gun ports, used on modern war vessels.
   Found on http://thinkexist.com/dictionary/meaning
   
   
5. SPONSON
   A short, winglike protuberance on each side of a seaplane fuselage to increase lateral stability.
   Found on http://www.aerofiles.com/glossary.html