from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A four-wheeled vehicle, powered by a person, usually by means of pedals.
from The Century Dictionary and Cyclopedia
- n. A four-wheeled vehicle intended to be propelled by the feet of the rider.
- n. A vehicle of the ‘cycle’ type, having four wheels and propelled by a small gasolene (or other) motor: usually constructed to carry one person.
quadri- + cycle; compare bicycle, tricycle. (Wiktionary)