/ Dictionary / Index T tricycle: Meaning and Definition of Find definitions for: tri•cy•cle Pronunciation: (trī'si-kul, -sik"ul), [key] — n. a vehicle, esp. one for children, having one large front wheel and two small rear wheels, propelled by foot pedals. a velocipede with three wheels propelled by pedals or hand levers. a three-wheeled motorcycle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tricycle (Thesaurus) tricyanic acid tricyclic Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language