Mississippi River

n. major and longest river in the United States originating in Minnesota and flowing south along the border of Mississippi into the Gulf of Mexico; river in south Ontario (Canada)

For the river in Canada, see Mississippi River (Ontario). The Mississippi River, derived from the old Ojibwe word misi-ziibi meaning 'great river' (gichi-ziibi 'big river' at its headwaters), is the second longest river in North America, with a length of 2,320 miles (3,733 km) from  Lake Itasca to the Gulf of Mexico. The Mississippi River is part of the Jefferson-Missouri-Mississippi river system, which is the largest in North America and among the largest in the world: by length (6,275 km or 3,900 miles), it is the fourth longest, and by average discharge (16,200 m³/s), it is the tenth largest. The longest of the many long Mississippi tributaries is the Missouri River with the Arkansas River as second longest. Measured by water volume, the largest of all Mississippi tributaries is the Ohio River. The river starts in Minnesota and then empties into the Gulf of Mexico.
See more at Wikipedia.org...

Noun
1. a major North American river and the chief river of the United States; rises in northern Minnesota and flows southward into the Gulf of Mexico
(synonym) Mississippi
(hypernym) river
(part-holonym) United States, United States of America, America, US, U.S., USA, U.S.A.