Sioux Falls 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 SE S.Dak.: pop. 124,000
Sioux Falls definition by American Heritage Dictionary
A city of southeast South Dakota near the Minnesota border. First settled c. 1856, it was abandoned in 1862 and reestablished as a military post in 1865. It is now the largest city in the state. Population: 142,000.