n.
A two-wheeled motor vehicle resembling a heavy bicycle, sometimes having two saddles and a sidecar with a third wheel.
motorcycle mo'tor·cy'cle v.
motorcyclist mo'tor·cy'clist n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
