Antarctic Plate

American  

[ant-ahrk-tik playt, -ahr-tik] / æntˈɑrk tɪk ˈpleɪt, -ˈɑr tɪk /

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.

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Etymology

Origin of Antarctic Plate

First recorded in 1930–35

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