Australian

from WordNet (r) 3.0 (2006)

Australian
    adj 1: of or relating to or characteristic of Australia or its
           inhabitants or its languages; "Australian deserts";
           "Australian aborigines"
    n 1: a native or inhabitant of Australia [syn: {Australian},
         {Aussie}]
    2: the Austronesian languages spoken by Australian aborigines
       [syn: {Australian}, {Aboriginal Australian}]

from The Collaborative International Dictionary of English v.0.48

Australian \Aus*tra"li*an\, a. [From L. Terra Australis southern
   land.]
   Of or pertaining to Australia. -- n. A native or an
   inhabitant of Australia.
   [1913 Webster]