The Collaborative International Dictionary of English v.0.48:

Oriental \O`ri*en"tal\ ([=o]`r[i^]*[e^]n"tal), a. [L.
   orientalis: cf. F. oriental.]
   Of or pertaining to the orient or east; eastern; concerned
   with the East or Orientalism; -- opposed to occidental; as,
   Oriental countries.
   [1913 Webster]

         The sun's ascendant and oriental radiations. --Sir T.
                                                  Browne.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Oriental \O`ri*en"tal\, n.
   1. A native or inhabitant of the Orient or some Eastern part
      of the world; an Asiatic.
      [1913 Webster]

   2. pl. (Eccl.) Eastern Christians of the Greek rite.
      [1913 Webster]

WordNet (r) 3.0 (2006):

oriental
    adj 1: denoting or characteristic of countries of Asia;
           "oriental civilization"
    n 1: a member of an Oriental race; the term is regarded as
         offensive by Asians (especially by Asian Americans) [syn:
         Oriental, oriental person]