Rapid City 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.
city in W S.Dak., in the Black Hills: pop. 60,000
Origin: from its location on Rapid Creek
Rapid City definition by American Heritage Dictionary
A city of southwest South Dakota west-southwest of Pierre in the eastern part of the Black Hills. It is a trade, transportation, and tourist center. Population: 62,700.