Also found in: Thesaurus, Medical.
1. the Australian national character or spirit
2. loyalty to Australia, its political independence, culture, etc
3. a linguistic usage, custom, or other feature peculiar to or characteristic of Australia, its people, or their culture
Aus•tral•ian•ism(ɔˈstreɪl yəˌnɪz əm)
a language feature characteristic of or peculiar to Australian English.