1. a tributary of the Columbia River that rises in Wyoming and flows westward; discovered in 1805 by the Lewis and Clark Expedition; [syn: Snake, Snake River]
WordNet (r) 3.0 (2006):
Snake River
n 1: a tributary of the Columbia River that rises in Wyoming and
flows westward; discovered in 1805 by the Lewis and Clark
Expedition [syn: Snake, Snake River]