from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. On a steam locomotive, a powered wheel driven by the locomotive's pistons or turbine.
from the GNU version of the Collaborative International Dictionary of English
- adj. a wheel that communicates motion; one of the large wheels of a locomotive to which the connecting rods of the engine are attached; -- called also, simply, driver. See Illust. of Locomotive.
from The Century Dictionary and Cyclopedia
- n. In machinery, a main wheel that communicates motion to another or to others.
- n. In railroading, one of the large wheels (commonly four, though occasionally as many as ten, in number) in a locomotive engine which are fixed upon the crank-axles or main shafts. Also called driver and drive-wheel.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a wheel that drives a motor vehicle (transforms torque into a tractive force)
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