a state of the southern US, on the Gulf of Mexico: originally a French colony; bought by the US in 1803 as part of the Louisiana Purchase; chiefly low-lying. Capital: Baton Rouge. Pop: 4 496 334 (2003 est). Area: 116 368 sq km (44 930 sq miles)
Abbreviation: La or (with zip code) LA
Louisiana in American English
(luˌiziˈænə; ˌ luəziˈænə; ˌ luziˈænə)
state of the S U.S., on the Gulf of Mexico: admitted, 1812; 43,562 sq mi (112,825 sq km); pop. 4,469,000; cap. Baton Rouge
abbrev. LA or La
Word origin
Fr La Louisianne, name for the Mississippi Valley, after Louis2 (sense 7)