Pronunciation: (yOO-bang'gē, OO-bäng'-),[key] —n. 1. French, Oubangi. a river in W central Africa, forming part of the boundary between Zaire and the Central African Republic, flowing W and S into the Congo (Zaire) River. 700 mi. (1125 km) long.
2. a woman of the Sara tribe in the Central African Republic whose lips are pierced and stretched around flat wooden disks.