superocean; super ocean
Geological term for a vast ocean that surrounds a supercontinent, such as Panthalassa. Used in earth science contexts.
See also: パンサラッサ
The supercontinent Pangaea was surrounded by the superocean Panthalassa.
Compound of 超 (chō, 'super-') and 海洋 (kaiyō, 'ocean'). A modern scientific term, likely a calque from English 'superocean'.