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inner tube
noun
: an inflatable usually ring-shaped rubber tube designed for use inside a pneumatic tire
Examples of inner tube in a Sentence
Recent Examples on the Web
Myles Straw is earning a bunch of money while relaxing in an inner tube on the Olentangy River.
—Zack Meisel, The Athletic, 29 July 2024
Visitors may enjoy the river on an inner tube or paddle boat, hike 16 miles of scenic trails, fish, play miniature golf, camp and more.
—Alexis Simmerman, Austin American-Statesman, 25 June 2024
When the inner tube fills, water overflows into the outer tube, which can hold 20 inches of water.
—Russ Schumacher, Discover Magazine, 8 Oct. 2024
McPhee fondly recalls a time her granddaughter slipped through an inner tube while the entire family of 10 was tethered together, floating down Ginnie Springs in Florida.
—Kinsey Gidick, Southern Living, 7 Oct. 2024
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Word History
First Known Use
1894, in the meaning defined above
Dictionary Entries Near inner tube
Cite this Entry
“Inner tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inner%20tube. Accessed 28 Nov. 2024.
Kids Definition
inner tube
noun
: an inflatable ring-shaped rubber tube used inside a tire to hold air under pressure
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