Niger-Congo 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.
designating or of a large subfamily of the Niger-Kordofanian language family, covering much of sub-Saharan Africa and including the Bantu, Kwa, and Voltaic branches
Niger-Congo definition by American Heritage Dictionary
A large and widely dispersed language family of sub-Saharan Africa that includes the Mande, West Atlantic, and Central Niger-Congo branches.