/mis'euh sip"ee/ , n.
1. a state in the S United States. 2,520,638; 47,716 sq. mi. (123,585 sq. km). Cap.: Jackson. Abbr.: MS (for use with zip code), Miss.
2. a river flowing S from N Minnesota to the Gulf of Mexico: the principal river of the U.S. 2470 mi. (3975 km) long; from the headwaters of the Missouri to the Gulf of Mexico 3988 mi. (6418 km) long.