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Antarctic Plate

American  
[ant-ahrk-tik pleyt, -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.

Etymology

Origin of Antarctic Plate

First recorded in 1930–35

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.