Source : Webster's Revised Unabridged Dictionary (1913)

Aboriginal \Ab`o*rig"i*nal\, a. [See {Aborigines}.]
   1. First; original; indigenous; primitive; native; as, the
      aboriginal tribes of America. ``Mantled o'er with
      aboriginal turf.'' --Wordsworth.

   2. Of or pertaining to aborigines; as, a Hindoo of aboriginal
      blood.

Aboriginal \Ab`o*rig"i*nal\, n.
   1. An original inhabitant of any land; one of the aborigines.

   2. An animal or a plant native to the region.

            It may well be doubted whether this frog is an
            aboriginal of these islands.          --Darwin.

Source : WordNet®

Aboriginal
     n : a dark-skinned member of a race of people living in
         Australia when Europeans arrived [syn: {Aborigine}, {Abo},
          {native Australian}, {Australian Aborigine}]