A native or inhabitant of the city of Adelaide.
Designating flora, fauna, rocks, etc., characteristic of regions around Adelaide; of or relating to such flora, etc. In later use: (Geology) designating a system of strata of the Proterozoic eon exposed in parts of South Australia.
2Of, relating to, or characteristic of the city of Adelaide or its inhabitants.
Mid 19th century; earliest use found in The Sydney Gazette. From the name of Adelaide, capital city of South Australia + -ean.