sponson Definition
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sponson
noun
- 1a. A structure that juts out from the deck of a boat and which provides a platform for a gun;
1b. A similar structure on a paddle steamer where its function is to support the paddle-box.
2a. An air-filled tank that is attached to the side of a canoe to minimize the chance of it capsizing;
2b. A similar structure on a seaplane for improving its stability in the water.
