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idler pulley

noun

: 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

Rhymes for idler pulley

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Browse Nearby Words

idle rich
idler pulley
idler wheel
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Cite this Entry

“Idler pulley.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/idler%20pulley. Accessed 29 Nov. 2025.

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