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Pacific Antarctic Ridge

American  
[puh-sif-ik ant-ahrk-tik rij, -ahr-tik] / pəˈsɪf ɪk æntˈɑrk tɪk ˈrɪdʒ, -ˈɑr tɪk /

noun

  1. a west-southwest elevation of the seafloor in the South Pacific Ocean, separating the Pacific Plate from the Antarctic Plate: sometimes considered the southern portion of the East Pacific Rise. PAR

Etymology

Origin of Pacific Antarctic Ridge

First recorded in 1955–60

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.