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

In Texas, many injury reports made to state regulators involved water park attractions, such as incidents in which riders were thrown from inner tubes, resulting in head injuries and other trauma. — Blake Ellis, CNN Money, 15 Oct. 2026

Riders go down a steep slope on large inner tubes before hitting a small bump to slow down and finally stopping on a turf patch. — Camila Pedrosa, Sacbee.com, 29 Aug. 2026

They are believed to have been riding inner tubes on the Muskegon River. — Paula Wethington, CBS News, 6 Aug. 2026

Do not rely on water toys such as floaties, noodles, or inner tubes as substitutes for life jackets. — Thao Nguyen, USA Today, 10 July 2026

Word History

First Known Use

1894, in the meaning defined above

Rhymes for inner tube

• hypercube
• nanotube
• phototube
• boob
• cube
• lube
• rube

Kids Definition

inner tube

noun

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