idler pulley


: a guide or tightening pulley for a belt or chain

Word History

First Known Use

circa 1890, in the meaning defined above

Time Traveler
The first known use of idler pulley was circa 1890

Dictionary Entries Near idler pulley

Cite this Entry

“Idler pulley.” Dictionary, Merriam-Webster, Accessed 22 Feb. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!