from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A unicycle.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A unicycle or monowheel; often specifically a unicycle with the rider seated inside the wheel.
  • n. An aromatic compound containing a single ring.
  • n. The first derivative of a Gaussian, often used as an impulse signal.

from The Century Dictionary and Cyclopedia

  • n. A vehicle with one wheel: used figuratively in the quotation.
  • n. In biology, the type of individual or racial development which consists of but a single cycle: opposed to polycycle.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a vehicle with a single wheel that is driven by pedals


from Wiktionary, Creative Commons Attribution/Share-Alike License

mono- +‎ cycle, thus literally "one wheel."


  • He is wearing shades, has curly hair and is riding a monocycle.


  • One of the bits of technology from the Stainless Steel Rat books which always sticks in my head is the ‘monocycle’ which made an appearance in the original 1957 story:

    2009 March « Official Harry Harrison News Blog

  • Back in November 2003 Forbes. com posted a story about a concept for a monocycle, created by Quebec-based Bombardier Recreational Products, makers of ATVs, skidoos, and such.

    2009 March « Official Harry Harrison News Blog

  • Today on Boing Boing Gadgets, we played with a cheap retro console clone; imagined riding the NOAH concept monocycle; listened as a Roboclarinet played "Flight of the Bumblebee"; and gaped at

    Boing Boing

  • We bumped into on of our cubs - Holly who was getting wobbly on the monocycle!

    Snell-Pym » Cheltenham Science Festival 09

  • Though I think the monocycle is impractical, I also find it very beautiful.

    21st Century Monocycle by Ben Wilson | Inhabitat

  • MetaFilter: The Wheelsurf is a motorised monocycle powered by a chainsaw engine.

    Archive 2005-06-01

  • He guided his monocycle carefully, counterbalancing with his body when its motions sent it into twists of precession; incorrectly handled, these machines could dump a man in a hurry, since the precession operated at right angles to the force applied.

    Split Infinity

  • And a gyro monocycle, an all-band transceiver, and an information watch.

    Split Infinity

  • And then the treads lifted, and he saw the monstrous gas-spreading tubes at the stern, and the exhaust-pipes into which he could have ridden, monocycle and all.

    Morale A Story of the War of 1941-43


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