bi·cy·cle (b??s?k??l, -s?-k?l, -s??k?l)n.1. A vehicle consisting of a light frame mounted on two typically wire-spoked wheels one behind the other and usually having a seat, handlebars for steering, brakes, and two pedals by which it is driven.2. An exercise bicycle.intr.v. bi·cy·cled, bi·cy·cling, bi·cy·cles To ride or travel on a bicycle.[Probably bi- + -cycle (on the model of tricycle, three-wheeled coach).]bi?cy·cler (-kl?r), bi?cy·clist (-kl?st) n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.bicycle (?ba?s?k?l) n (Automotive Engineering) a vehicle with a tubular metal frame mounted on two spoked wheels, one behind the other. The rider sits on a saddle, propels the vehicle by means of pedals that drive the rear wheel through a chain, and steers with handlebars on the front wheel. Often shortened to: cycle or bike vb (intr) to ride a bicycle; cycle[C19: from bi-1 + Late Latin cyclus, from Greek kuklos wheel] ?bicyclist, ?bicycler nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014bi?cy?cle (?ba? s? k?l, -?s?k ?l, -?sa? k?l) n., v. -cled, -cling. n. 1. a vehicle with two wheels in tandem, pedals connected to the rear wheel by a chain, handlebars for steering, and a saddlelike seat. v.i. 2. to ride a bicycle. [1865?70;