1. a vehicle with a single wheel that is propelled by pedals and balanced by the rider

1. to ride a unicycle

Examples

• The circus performer rode a unicycle across the tightrope.
• She learned to unicycle when she was twelve years old.
• The street entertainer juggled while balancing on his unicycle.
• It takes practice to unicycle without falling over.
• The unicycle has only one wheel, unlike a bicycle which has two.
• He bought a new unicycle for his daughter’s birthday.
• The clown could unicycle backwards around the ring.