inner tube
Noun
Meaning
an inflatable rubber tube that fits inside the casing of a pneumatic tire
Source: WordNetSynonyms
Hypernyms
Examples
I'd pull my little brother on our motorcycle on an inner tube behind it. We would go fishing, we would hunt some, growing up.
But when Stanley had been there, the inner tube for bicycle tyres had not yet been invented and there had been little demand for rubber.
Fluorescent black light lamps use a phosphor on the inner tube surface, which emits UVA light instead of visible light.
Among the other training tools that Daly uses to stay fit is a homemade device, a deflated rubber inner tube that is nailed to the wall, which she uses as resistance to strengthen her jabs.
Moreover, they last longer: if the carcass and the tread are ok, all you have to do is replace the inner tube and your bike will be good for many more miles.
Beer just tastes better in an inner tube.