Pacific Antarctic Ridge

[ puh-sif-ik ant-ahrk-tik rij, -ahr-tik ]

  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. Abbreviation: PAR

Origin of Pacific Antarctic Ridge

First recorded in 1955–60

Words Nearby Pacific Antarctic Ridge Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023