- of or relating to the .
- of or relating to the region of , its inhabitants, or their culture.
- Geology. of or relating to the orogeny and accompanying intrusion that occurred in eastern North America during the Pennsylvanian and Permian periods.
- a native or inhabitant of , especially one of predominantly Scotch-Irish, English, or German ancestry who exemplifies the characteristic cultural traditions of this region.
- a mountain range in E North America, extending from S Quebec province to N Alabama. Highest peak, Mt. Mitchell, 6684 feet (2037 meters).
- of, from, or relating to the Appalachian Mountains
- geology of or relating to an episode of mountain building in the late Palaeozoic era during which the Appalachian Mountains were formed
- a mountain system of E North America, extending from Quebec province in Canada to central Alabama in the US: contains rich deposits of anthracite, bitumen, and iron ore. Highest peak: Mount Mitchell, 2038 m (6684 ft)
in reference to the North American mountain range, c.1600, Mountaynes Apalatsi; written apalachen by Spanish explorers and originally in reference only to the southern end of the range. Originally the name of the Apalachee, a Muskogean people of northwestern Florida, perhaps from Apalachee abalahci “other side of the river” or Hitchiti (Muskogean) apalwahči “dwelling on one side.” Spelling shifted under influence of adjectives in -ian.
Mountain chain in the eastern United States, extending from the valley of thein , , to the coastal plain of the in .