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unicycle

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

noun

unicycles plural
  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

Derived Forms

Inflected Forms

Nouns

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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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.

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

The Red Trouser Show, an acrobatic, juggling and comedy duo, will perform, along with the Bindlestiff Family Cirkus, which will offer “The Hell on Wheel Unicycle Stunt Show.”

From New York Times • Jun. 28, 2012

In addition to executing awesome maneuvers, the Cirkus and the Chatham Unicycle Club will run a Learn to Unicycle area for children 6 and older.

From New York Times • Jun. 28, 2012

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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