Antarctic Plate

[ ant-ahrk-tik pleyt, -ahr-tik ]

noun

, Geology.

1. a major tectonic division of the earth's crust, comprising Antarctica and adjacent ocean basins (the South Indian, Southeast Pacific, and Atlantic-Indian Basins) and bounded on the north by the Nazca, South American, African, Indo-Australian, and Pacific Plates.

Word History and Origins

Origin of Antarctic Plate¹

First recorded in 1930–35