Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: GeographyAustralasianAus‧tra‧la‧sian /ˌɒstrəˈleɪʒən◂, -ʃən $ ˌɒː-, ˌɑː-/ adjective SGrelating to Australasia (=Australia and the islands that are near to it) or its people ldoceonline.com