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worm gear
or wormgear
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noun
a mechanism consisting of a worm engaging with and driving a worm wheel, the two axes usually being at right angles, used where a relatively low speed and a relatively large amplification of power are desired.
Also called worm wheel. a gear wheel driven by a worm.
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Origin of worm gear
First recorded in 1875–80
Words nearby worm gear
worm-eaten, wormery, worm fence, wormfish, wormfly, worm gear, worm grass, wormhole, worm into, worm lizard, worm out of
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use worm gear in a sentence
British Dictionary definitions for worm gear
worm gear
noun
a device consisting of a threaded shaft (worm) that mates with a gearwheel (worm wheel) so that rotary motion can be transferred between two shafts at right angles to each other
Also called: worm wheel a gearwheel driven by a threaded shaft or worm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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