- A range of mountains in eastern North America, running northeast from Alabama in the United States to Newfoundland in Canada, variously including or excluding the Adirondack Mountains in northern New York.
- The southern portion of the United States portion of this area, as a socioeconomic region.
- plural form of Appalachian
Variant of Appalachian Mountains
mountain system located in E North America, extending from S Quebec to N Ala.: c. 1,600 mi (2,575 m); highest peak, Mt. Mitchell
Origin of Appalachian Mountains; from uncertain or unknown; perhaps Apalachee Indians ; from uncertain or unknown; perhaps Amerindian (Choctaw)