worm gear

noun

Definition of worm gear

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

Illustration of worm gear

Illustration of worm gear

worm gear 2

First Known Use of worm gear

1851, in the meaning defined at sense 1

Keep scrolling for more

Learn More about worm gear

Time Traveler for worm gear

Time Traveler

The first known use of worm gear was in 1851

See more words from the same year

Statistics for worm gear

Cite this Entry

“Worm gear.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/worm%20gear. Accessed 9 December 2019.

More from Merriam-Webster on worm gear

Rhyming Dictionary: Words that rhyme with worm gear

Britannica.com: Encyclopedia article about worm gear

Comments on worm gear

What made you want to look up worm gear? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

contradictory or incongruous words

Get Word of the Day daily email!

Test Your Vocabulary

Semantic Drift Quiz

  • a twisty river
  • Which of the following was once a synonym for fun?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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