A paddle wheel on an old steamboat.
A paddle-wheeler in New Orleans.
paddle wheel definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a wheel with paddles set at right angles about its circumference for propelling a steamboat
paddle wheel definition by American Heritage Dictionary
A wheel with boards or paddles affixed around its circumference, usually driven by steam to propel a ship.
- padˈdle-wheelˌ adjective