Rafting on the Orange River.Licensed from iStockPhoto
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A river, about 2,092 km (1,300 mi) long, of Lesotho, South Africa, and Namibia flowing southwest, northwest, and west to the Atlantic Ocean. It is used extensively for irrigation.