- a one-wheeled vehicle.
Origin of monocycle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for monocycle
Just my monocycle got hot an' caught on fire, an' then a ship busted out in flames an' went down.
He flung a leg over the monocycle's seat and pointed tiredly to the trail of the Wabbly.
Sergeant Walpole got exhaustedly off his monocycle and duplicated the 'copter man's efforts.
- another name for unicycle