What does australasicus mean in Latin?

australasicus, a adjective, means “Australasian”.

How do you pronounce australasicus?

In classical Latin, [au̯s.traˈɫa.sɪ.kʊs]; in ecclesiastical (church) Latin, [au̯s.traˈlaː.s̬i.kus].

adjectivefirst/second-declension adjective

australasicus (feminine australasica, neuter australasicum)

Classical[au̯s.traˈɫa.sɪ.kʊs]Ecclesiastical[au̯s.traˈlaː.s̬i.kus]

singular
form	masculine	feminine	neuter
nominative	australasicus	australasica	australasicum
genitive	australasicī	australasicae	australasicī
dative	australasicō	australasicae	australasicō
accusative	australasicum	australasicam	australasicum
ablative	australasicō	australasicā	australasicō
vocative	australasice	australasica	australasicum

plural
form	masculine	feminine	neuter
nominative	australasicī	australasicae	australasica
genitive	australasicōrum	australasicārum	australasicōrum
dative	australasicīs	australasicīs	australasicīs
accusative	australasicōs	australasicās	australasica
ablative	australasicīs	australasicīs	australasicīs
vocative	australasicī	australasicae	australasica

From Australasia + -icus.