1A projection on the side of a boat, ship, or seaplane, in particular:
- The three davits for the deployment of landing craft and the patrol boat are relocated to a sponson installed on the port side of the ship instead of on the flight deck.
- The battery door is on the aft end of the sponson that houses the port main landing gear.
- At one critical point in the match, a streaker emerged from the hangar, running across the flight deck (in just shorts and hat), disappearing down onto one of the aft sponsons.
Mid 19th century: of unknown origin.
Words that rhyme with sponsonJohnson, Jonson, Swanson
For editors and proofreaders
Line breaks: spon|son
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