Indo-Australian Plate: Meaning and Definition of

In'do-Aus•tral'ian Plate'

Pronunciation: (in'dō-ô-strāl'yun), [key]
— Geol. Geol.
  1. a major tectonic division of the earth's crust, comprising India and the Australian continent and adjacent suboceanic basins (the Tasman, South Australian, Mid-Indian, Cocos, and Australian basins); separated from the Eurasian Plate by the Java Trench, from the Pacific Plate by the Tonga-Kermadec Trench, and from the African Plate by a series of mid-ocean ridges (the Carlsberg, Mid-Indian, and Southeast Indian ridges).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.