from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A pulley on a shaft that rests on or presses against a drive belt to guide it or take up slack.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a pulley on a shaft that presses against a guide belt to guide or tighten it


Sorry, no etymologies found.


Help support Wordnik (and make this page ad-free) by adopting the word idle pulley.


    Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.