1. average middle-class Americans as a group, as distinguished from the rich or poor or the politically extreme.
2. the Midwest.
3. continental North America S of the U.S., comprising Mexico, Central America, and usually the West Indies. 92,000,000; 1,060,118 sq. mi. (2,745,705 sq. km).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.