The definition of a bicycle is a two-wheeled vehicle with one wheel in front of the other which is propelled using foot pedals.(noun)
A two-wheeled vehicle that you pedal is an example of a bicycle.
Bicycle is defined as to ride a two-wheeled vehicle that you propel forward by pedaling with your feet.(verb)
When you ride a two-wheeled vehicle (also called a bicycle), this is an example of a time when you bicycle.
See bicycle in Webster's New World College Dictionary
Origin: Fr: see bi- & cycle
See bicycle in American Heritage Dictionary 4
Origin: Probably bi-1
Origin: + -cycle (on the model of tricycle, three-wheeled coach).
Learn more about bicycle