Tricycle (noun)

A three-wheeled vehicle powered either by a motor or by pedaling.

Origin:

Mid 19th century: from tri- + cycle.

Examples:

1. The young boy was riding his tricycle down the sidewalk.
2. The delivery man arrived at the store on his tricycle.
3. The elderly man used his tricycle to get around town.
4. The disabled child was given a tricycle to help with mobility.
5. The tricycle was a popular mode of transportation in the early 20th century.