: a vehicle that has a single wheel and is usually propelled by pedals

Illustration of unicycle

Illustration of unicycle

Examples of unicycle in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Officers captured the scene using a drone, which showed the man balancing on the unicycle as flames flickered just feet from passing vehicles. Jasmine Baehr, FOXNews.com, 8 Feb. 2026 The halftime entertainment was the Red Panda, the Chinese acrobat who flips bowls onto her head while riding a tall unicycle. Mark Zeigler, San Diego Union-Tribune, 7 Jan. 2026 Currently, high-speed e-bikes, e-scooters and electric unicycles — some capable of exceeding 50 mph — operate with no state regulation. Jeremy Gorner, Chicago Tribune, 3 June 2026 Under the legislation, electric scooters, electric skateboards, and electric unicycles would be prohibited from operating over 28 mph on roads, bike lanes, bike paths, and sidewalks. Jermont Terry, CBS News, 1 May 2026 See All Example Sentences for unicycle

Word History

Etymology

uni- + -cycle (as in tricycle)

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of unicycle was in 1869

Browse Nearby Words

Cite this Entry

“Unicycle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unicycle. Accessed 7 Jul. 2026.

Kids Definition

: a vehicle having a single wheel and usually moved forward by pedals
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