Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
- a gear with teeth designed to mesh with the thread of a worm ()
- a mechanism consisting of this gear and a worm ()
Used by arrangement with John Wiley & Sons, Inc.
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A gear consisting of a spirally threaded shaft and a wheel with marginal teeth that mesh into it.
- The toothed wheel of this gear; a worm wheel.
worm gear assembly