Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
river in W Africa, a tributary of the Niger, flowing through Cameroon and Nigeria: c. 900 mi (1,448 km)
Used by arrangement with John Wiley & Sons, Inc.
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 of western Africa rising in Cameroon and flowing about 1,078 km (670 mi) to the Niger River in central Nigeria.