innertube

See also: inner tube

English edit

Etymology edit

inner +‎ tube

Pronunciation edit

Audio (US) (file)

Noun edit

innertube (plural innertubes)

In a pneumatic tire, the rubber liner that holds the air.
This rubber liner, used without the tire on water as a flotation aid.

Retrieved from "https://en.wiktionary.org/w/index.php?title=innertube&oldid=55390897"