Pronunciation: ' mid- ' ō -sh ə n-
Function: noun
Date: 1961
: 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
Pronunciation: ' mid- ' ō -sh ə n-
Function: noun
Date: 1961
: 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
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012