Adelaidean

== English == === Alternative forms === Adelaidian === Etymology === From Adelaide +‎ -an. === Noun === Adelaidean (plural Adelaideans) A native or inhabitant of the city of Adelaide, South Australia. === Adjective === Adelaidean (not comparable) Of, from or relating to the city of Adelaide, South Australia. === Proper noun === the Adelaidean (geology) An age from 1300 to 542 million years ago, a subdivision of the Proterozoic.