For many kids, their first vehicle is a tricycle, or a small three-wheeled bike.

Though a child's riding toy is what the word tricycle brings to mind, there are also adult-sized three-wheeled tricycles. A tricycle is safer and more stable than a bicycle with its two wheels, and some older or disabled people enjoy riding them. The original meaning of tricycle, in 1828, was "three-wheeled carriage," from the Greek treis, "three," and kyklos, "circle or wheel."

Definitions of tricycle
  1. noun
    a vehicle with three wheels that is moved by foot pedals
    synonyms: trike, velocipede
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    cycle rickshaw, pedicab
    a tricycle (usually propelled by pedalling); used in the Orient for transporting passengers for hire
    type of:
    wheeled vehicle
    a vehicle that moves on wheels and usually has a container for transporting things or people
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