worm gear


: a gear of a worm and a worm wheel working together

Illustration of worm gear

Illustration of worm gear
  • worm gear 2

Examples of worm gear in a Sentence

Recent Examples on the Web Also, the gear geometry is such that, when the saw is on, the worm gear can turn the worm wheel, but not the other way around. Roy Berendsohn, Popular Mechanics, 18 Mar. 2021 And the saw should have more than enough power to handle typical dados, thanks to the 15-amp worm gear motor that powers it. Roy Berendsohn, Popular Mechanics, 24 Feb. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'worm gear.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1851, in the meaning defined at sense 1

Time Traveler
The first known use of worm gear was in 1851

Dictionary Entries Near worm gear

Cite this Entry

“Worm gear.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/worm%20gear. Accessed 23 Apr. 2024.

Kids Definition

worm gear

: a mechanical linkage consisting of a short rotating screw whose threads fit together with the teeth of a gearwheel

More from Merriam-Webster on worm gear

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