Dictionary

mid–ocean ridge

noun \ˈmid-ˈō-shən-\

Definition of MID-OCEAN RIDGE

:  an elevated region with a central valley on an ocean floor at the boundary between two diverging tectonic plates where new crust forms from upwelling magma

First Known Use of MID-OCEAN RIDGE

1961

Rhymes with MID-OCEAN RIDGE

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