sponson

noun
spon·son | \ˈspän(t)-sən \

Definition of sponson 

1a : a projection (such as a gun platform) from the side of a ship or a tank

b : an air chamber along a watercraft (such as a canoe) to increase stability and buoyancy

2 : a light air-filled structure or a winglike part protruding from the hull of a seaplane to steady it on water

Examples of sponson in a Sentence

Recent Examples on the Web

That will allow salvage crews to gradually lift the ship one deck at a time, as water is pumped out and compressed air pumped in to some 30 sponsons attached to its side. Barbara Peterson, Popular Mechanics, "Here's How the Costa Concordia is Emerging from the Sea," 14 July 2014 Jones, a veteran boat racer himself, points out that the only original part of the boat are the sponsons. Nathan Joyce, The Seattle Times, "Andrew Tate, who won at Seafair as a rookie last year, seeks an encore Sunday," 5 Aug. 2017 The boats came in all shapes and sizes — like the 10-horsepower shovel nose and the pickle fork with two sponsons jutting out front. Hasan Dudar, Detroit Free Press, "Do they still float? Vintage racing boats come back to Detroit," 15 July 2017 Runabouts are boats with a hull that resembles that of a rowboat, and hydroplanes are faster and have sponsons that reduce surface area, according to show organizer Ed Zaleski, who was displaying his 1969 runabout named Challenger. Hasan Dudar, Detroit Free Press, "Do they still float? Vintage racing boats come back to Detroit," 15 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sponson.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of sponson

1835, in the meaning defined at sense 1a

History and Etymology for sponson

perhaps by shortening & alteration from expansion

Keep scrolling for more

Learn More about sponson

Statistics for sponson

Look-up Popularity

Time Traveler for sponson

The first known use of sponson was in 1835

See more words from the same year

Comments on sponson

What made you want to look up sponson? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

evasion of direct action or statement

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!