Irish-Australian
/ˌʌɪrɪʃɒˈstreɪlɪən/ /ˌʌɪrɪʃɔːˈstreɪlɪən/adjective
Designating an Australian of Irish origin or descent; of or relating to Australians of this kind.
noun
An Australian of Irish origin or descent.
Origin
Mid 19th century; earliest use found in Colonial Times (Hobart). From Irish + Australian.