/ Dictionary / Index A Australasia: Meaning and Definition of Find definitions for: Aus•tral•a•sia Pronunciation: (ô"stru-lā'zhu, -shu), [key] — n. Australia, New Zealand, and neighboring islands in the S Pacific Ocean. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: australasia (Thesaurus) austral Australia Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language