cog·​wheel | \ ˈkäg-ˌ(h)wēl How to pronounce cogwheel (audio) \

Definition of cogwheel

: a wheel with cogs : gear sense 6a(2)

Examples of cogwheel in a Sentence

Recent Examples on the Web Lovelace kept up a correspondence with the English inventor Charles Babbage, who worked his whole life on a huge brass cogwheel engine that could compute logarithmic tables, to be used by astronomers and navigators. Paul Grimstad, The New Yorker, "Living in Alan Turing’s Future," 19 Jan. 2020 Like the travelers, Punkka rode a cogwheel train from Kleine Scheidegg through a tunnel under the mountain to get there. Rachel Hartigan Shea, National Geographic, "How a photographer got this amazing mountaintop shot," 9 Dec. 2019 Cap off your time here with a journey by cogwheel train past picturesque mountain villages to arrive at Jungfraujoch, the highest railway station in Europe. National Geographic, "Swiss and French Alps Expedition: Mountain Adventure," 15 Sep. 2019 Spenuzza recalls potty training her youngest son, then 2 years old, on cogwheel trains in Switzerland. Aliese Muhonen, Daily Pilot, "International Latino Book Award finalist writes a travel memoir spanning 50 years and 125 countries," 24 July 2019 This is his battlefield against cogwheels, fan belts, carburetors and radiators, spark plugs, and batteries. Amos Oz, Harper's magazine, "Setting the World to Rights," 10 Apr. 2019 On the first day of the itinerary, riders are apt to be gasping aboard the Mt. Pilatus Railway, the steepest cogwheel railway in the world, with a gradient of up to 48 percent. Phil Marty,, "Scaling the Swiss Alps on trains and trams, ranking road-trip friendly states and more," 27 June 2018 The tremors in his left arm had returned, accompanied by the symptoms of cogwheel rigidity, where the limb would inexplicably stop itself at certain fixed points in its range of motion. Dave Itzkoff, HWD, "Inside the Final Days of Robin Williams," 8 May 2018 Most travelers hop to the summit of Mount Pilatus ( on the cogwheel train (May to November) or cable car, and come back down. Sylvie Bigar, New York Times, "A Grand Tour of Switzerland, Reluctant Son in Tow," 11 Oct. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cogwheel.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of cogwheel

14th century, in the meaning defined above

Keep scrolling for more

Learn More about cogwheel

Time Traveler for cogwheel

Time Traveler

The first known use of cogwheel was in the 14th century

See more words from the same century

Statistics for cogwheel

Last Updated

27 Jan 2020

Cite this Entry

“Cogwheel.” Dictionary, Merriam-Webster, Accessed 29 Feb. 2020.

Keep scrolling for more

More Definitions for cogwheel


How to pronounce cogwheel (audio)

English Language Learners Definition of cogwheel

: a wheel with cogs


cog·​wheel | \ ˈkäg-ˌhwēl How to pronounce cogwheel (audio) , -ˌwēl \

Kids Definition of cogwheel

: a wheel with cogs on the rim

Keep scrolling for more

More from Merriam-Webster on cogwheel

Rhyming Dictionary: Words that rhyme with cogwheel

Spanish Central: Translation of cogwheel

Nglish: Translation of cogwheel for Spanish Speakers

Comments on cogwheel

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


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

February 2020 Words of the Day Quiz

  • squirrel in winter
  • Which is a synonym of probity?
Spell It

Can you spell these 10 commonly misspelled words?


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

Love words? Need even more definitions?

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