from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A flexible, airtight hollow ring, usually made of rubber, that is inserted into the casing of a pneumatic tire for holding compressed air.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An inflatable rubber tube inserted into the casing of a pneumatic tyre / tire
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an inflatable rubber tube that fits inside the casing of a pneumatic tire
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