Missouri definition

noun

(1) A dialect of the Chiwere language spoken by the Missouri

(2) A midwestern state in central United States; a border state during the American Civil War, Missouri was admitted to the Confederacy without actually seceding from the Union

(3) The longest river in the United States; arises in Montana and flows southeastward to become a tributary of the Mississippi at Saint Louis

"The Missouri and Mississippi Rivers together form the third longest river in the world"

(4) A member of the Siouan people formerly inhabiting the valley of the Missouri river in Missouri

English

Proper noun

A . Capital Jefferson City: Postal abbreviation: MO

The longest river in the United States, flowing from Montana to become a tributary of the Mississippi at Saint Louis.

A Native American tribe that originally lived in the Great Lakes region of United States.

An organized territory in the United States during the nineteenth century.