NOUN (1)

1. a native or inhabitant of Appalachia;


ADJECTIVE (1)

1. in or relating to Appalachia;

The Collaborative International Dictionary of English v.0.48:

Appalachian \Ap`pa*la"chi*an\, a.
   Of or pertaining to a chain of mountains in the United
   States, commonly called the Allegheny mountains.
   [1913 Webster]

   Note: The name Appalachian was given to the mountains by the
         Spaniards under De Soto, who derived it from the
         neighboring Indians. --Am. Cyc.
         [1913 Webster]

WordNet (r) 3.0 (2006):

Appalachian
    adj 1: in or relating to Appalachia
    n 1: a native or inhabitant of Appalachia