Dictionary.com
Thesaurus.com

inner tube

American  

noun

  • inner tubes
    plural
  1. a doughnut-shaped, flexible rubber tube inflated inside a tire to bear the weight of a vehicle.


inner tube British  

noun

  1. an inflatable rubber tube that fits inside a pneumatic tyre casing

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of inner tube

First recorded in 1890–95

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

He’s also built a cage around the front of their inner tube, and gives everyone nets to catch the carp.

From The Wall Street Journal Apr. 8, 2026

Consider the analogy of trying to capture a 3D image of a child wearing an inner tube around their waist.

From Science Daily Apr. 22, 2024

Glover said she and her husband, who was at the helm of the pontoon boat towing their son’s inner tube, saw Hubbard racing toward them.

From Los Angeles Times Jul. 14, 2023

His mother and 10 others died while González, tied to an inner tube, drifted in open water until his rescue.

From Seattle Times Jun. 29, 2023

While I patched the inner tube, Miss Love leaned against the hood of the car, looking like she might faint.

From "Cold Sassy Tree" by Olive Ann Burns

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training