Pacific Antarctic Ridge

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

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

Word History and Origins

Origin of Pacific Antarctic Ridge¹

First recorded in 1955–60