oceanic ridge; submarine ridge
Geological term for a long, seismically active underwater mountain range, such as the Mid-Atlantic Ridge.
The Mid-Atlantic Ridge is one of the longest oceanic ridges in the world.
mid-ocean ridge
Standard kanji spelling for 'oceanic ridge'.
Compound of 海 (kai, 'sea') and 嶺 (rei, 'peak' or 'ridge'). The term is a direct calque from Western geological terminology.