1. a river that rises in western Arkansas and flows southeast into eastern Louisiana to become a tributary of the Red River; [syn: Ouachita, Ouachita River]
WordNet (r) 3.0 (2006):
Ouachita River
n 1: a river that rises in western Arkansas and flows southeast
into eastern Louisiana to become a tributary of the Red
River [syn: Ouachita, Ouachita River]