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Definition of missouri river

missouri river

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missouri river Lexical Profile

• noun

1

North American The longest river in North America, rising in the Rocky Mountains of western Montana and flowing east and south to join the Mississippi River north of St. Louis, Missouri.

Example

"The Lewis and Clark Expedition spent many months navigating the treacherous currents of the Missouri River to explore the newly acquired western territories."

• Nearby Words

mississippi river
mississippian
missive
missouri river
mist
mistletoe
mitchell

Word Origin & Etymology

Named after the Missouri Native American tribe. The name derives from the Miami-Illinois language word 'ouemessourita', which translates to 'those who have dugout canoes'.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Missouri river. In Wordmom Dictionary. Retrieved Oct 15, 2026, from https://wordmom.com/dictionary/missouri river
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