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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Some escaped in boats crafted from the inner tubes of car tires. Sarah Moreno, Miami Herald, 8 Apr. 2026 The remaining money covers expenses such as repair tools, inner tubes, flyers and kick stands. Kathryn Kovalenko, Twin Cities, 8 Apr. 2026 Some came in costume, or even with flamingo or unicorn inner tubes. Adam Harrington, CBS News, 1 Mar. 2026 Community ‘heartbroken’ over sewage spill Philip Gray used to enjoy paddling down the river in a canoe or floating in an inner tube, beer in hand, toward his home in Cabin John. N'dea Yancey-Bragg, USA Today, 18 Feb. 2026 See All Example Sentences for inner tube

Word History

First Known Use

1894, in the meaning defined above

Time Traveler
The first known use of inner tube was in 1894

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Cite this Entry

“Inner tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inner%20tube. Accessed 21 Apr. 2026.

Kids Definition

inner tube

noun
: an inflatable ring-shaped rubber tube used inside a tire to hold air under pressure

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