mid–ocean ridge

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noun \ˈmid-ˈō-shən-\

Definition of mid–ocean ridge

  1. :  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

1961

First Known Use of mid–ocean ridge

1961

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WORD OF THE DAY

a dividing ridge between drainage areas

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