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Nazca Plate

noun Geology.
  1. a tectonic division of the earth's crust, coincident with the suboceanic Peru Basin, and bounded on the north by the Cocos Plate, separated from the South American Plate by the Peru-Chile Trench, from the Pacific Plate by the East Pacific Rise, and from the Antarctic Plate by the Chile Rise.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018