a state of the N central US, in the Midwest: consists of rolling plains crossed by many rivers, with the Missouri forming the western border and the Mississippi the eastern. Capital: Des Moines. Pop: 2 944 062 (2003 est). Area: 144 887 sq km (55 941 sq miles)
Abbreviation: Ia. or (with zip code) IA
Iowa in American English
(ˈaiəwə, sometimes ˈaiəˌwei)
nounWord forms: plural(for 3)-was or esp collectively -wa
1.
a state in the central United States: a part of the Midwest. 2,913,387; 56,290 sq. mi. (145,790 sq. km). Cap.: Des Moines
Abbreviation: IA(approved esp. for use with zip code), Ia., Io.
2.
a river flowing SE from N Iowa to the Mississippi River. 291 mi. (470 km) long
3.
a member of a Native American people originally of Iowa, Missouri, and Minnesota but now of Oklahoma, Nebraska, and Kansas