bull wheel


Definition of bull wheel

  1. 1 :  the main driving wheel or gear of a machine, usually the largest and strongest wheel in the train of mechanism, in some machines (such as a shaper) transmitting the power received by the machine to the various mechanisms, in others (such as a tractor) delivering to the driving wheels the power transmitted to it from the motor

  2. 2 :  a drum on which a rope is wound for hauling or lifting something (such as logs or well-boring tools)

  3. 3 :  a wheel attached to the boom of a derrick at the base and used to swing the boom about a vertical axis

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Seen and Heard

What made you want to look up bull wheel? Please tell us where you read or heard it (including the quote, if possible).


capable of being understood in two ways

Get Word of the Day daily email!