Nearby Words

driving wheel

driving wheel

noun
1.
Machinery. a main wheel that communicates motion to others.
2.
Also called driver. Railroads. one of the wheels of a locomotive that transmits the power of an engine or motor into tractive effort.

Origin:
1830–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Driving wheel is always a great word to know.
So is ninnyhammer. Does it mean:
a fool or simpleton; ninny.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
Collins
World English Dictionary
driving wheel
 
n
1.  a wheel, esp a gear wheel, that causes other wheels to rotate
2.  any wheel of a vehicle that transforms torque into a tractive force

Collins English Dictionary - Complete & Unabridged 10th Edition
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