1. a river that rises in the Rocky Mountains in Colorado and flows southeast through Kansas and Oklahoma and through Arkansas to become a tributary of the Mississippi River; [syn: Arkansas, Arkansas River]
WordNet (r) 3.0 (2006):
Arkansas River
n 1: a river that rises in the Rocky Mountains in Colorado and
flows southeast through Kansas and Oklahoma and through
Arkansas to become a tributary of the Mississippi River
[syn: Arkansas, Arkansas River]