Australian

[aw-streyl-yuh n] /ɔˈstreɪl yən/
adjective
1.
of or pertaining to Australia, its inhabitants, or their languages.
2.
Zoogeography. belonging to a geographical division comprising Australia, New Zealand, Tasmania, Celebes, the Moluccas, Papua New Guinea, and adjacent smaller islands.
3.
Phytogeography. belonging or pertaining to a geographical division comprising Australia and Tasmania.
noun
4.
a native or inhabitant of Australia.
5.
an Aborigine of Australia.
6.
the phylum of languages spoken by the Aborigines of Australia, consisting of more than a hundred languages.
Abbreviation: Austral, Austral.
Origin
Australi(a) + -an
Related forms
anti-Australian, adjective, noun
pro-Australian, adjective, noun
pseudo-Australian, adjective, noun
trans-Australian, adjective
un-Australian, adjective
British Dictionary definitions for Australian

Australian

/ɒˈstreɪlɪən/
noun
1.
a native or inhabitant of Australia
2.
the form of English spoken in Australia
3.
a linguistic phylum consisting of the languages spoken by the native Australians
adjective
4.
of, relating to, or characteristic of Australia, the Australians, or their form of English
5.
of, relating to, or belonging to the phylum of languages spoken by the native Australians
6.
of or denoting a zoogeographical region consisting of Australia, New Zealand, Polynesia, New Guinea, and the Moluccas
Word Origin and History for Australian
n.

1690s, in reference to aboriginal inhabitants, from Australia + -an. As an adjective by 1814. Australianism in speech is attested from 1891.