Missouri

noun

1. 1

   a dialect of the Chiwere language spoken by the Missouri

2. 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. 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. 4

   a member of the Siouan people formerly inhabiting the valley of the Missouri river in Missouri