from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A metal cylinder to which pressure is applied by a braking mechanism in order to arrest rotation of the wheel or shaft to which the cylinder is attached.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A hollow metal cylinder, attached to a wheel of a vehicle, to which pressure is applied when braking.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a hollow cast-iron cylinder attached to the wheel that forms part of the brakes
Sorry, no etymologies found.