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unicycle

American  
[yoo-nuh-sahy-kuhl] / ˈyu nəˌsaɪ kəl /

noun

  1. a vehicle with one wheel, especially a pedal-driven device kept upright and steered by body balance, commonly used by acrobats and other performers.


verb (used without object)

unicycled, unicycling
  1. to ride a unicycle.

unicycle British  
/ ˈjuːnɪˌsaɪkəl /

noun

  1. Also called: monocycle.  a one-wheeled vehicle driven by pedals, esp one used in a circus, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of unicycle

An Americanism dating back to 1865–70; uni- + cycle

Explanation

You might see a unicyle, or a bicycle-like vehicle with only one wheel, ridden by a clown at the circus. It's harder to ride a unicycle than a bicycle, since you have to balance on a single wheel. Acrobats and other performers often ride unicycles and sometimes even do tricks like balancing on a tightrope while perched on the seat of a unicycle. The Latin prefix uni gives you a clue about the meaning of this word, since it means "one." In unicycle, it's combined with "cycle," which comes from the Greek word kyklos, "circle or wheel."

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Vocabulary lists containing unicycle

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

That’s when the King Charles Unicycle Troupe will play — while riding its favorite vehicles — at the basketball court in Clinton Playground in Crotona Park.

From New York Times • Sep. 2, 2021

I quickly convinced myself that these must be pictures of the legendary Unicycle Wranglers.

From BusinessWeek • Oct. 10, 2013

He was a standout member of a troupe of unicyclists that appeared in circuses and other events under such names as the Albuquerque Unicycle Club and the Unicycle Wranglers.

From BusinessWeek • Oct. 10, 2013

Many more are expected at the first New York City Unicycle Festival next weekend, a three-day celebration of all things one-wheeled including races, unicycle hockey and basketball — and lessons for novices.

From New York Times • Aug. 28, 2010

Unicycle, ū-ni-sī′kl, n. an acrobat's cycle having but one wheel.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various

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