| an ocean bounded by North America and South America in the Western Hemisphere and by Europe and Africa in the Eastern Hemisphere. ab. 31,530,000 sq. mi. (81,663,000 sq. km); with connecting seas ab. 41,000,000 sq. mi. (106,100,000 sq. km); greatest known depth, 30,246 ft. (9219 m). |
| Atlantic Ocean The world's second-largest ocean, divided into the North Atlantic and the South Atlantic. It extends from the Arctic in the north to the Antarctic in the south between the eastern Americas and western Europe and Africa. |
Second-largest ocean in the world, separating North America and South America on the west from Europe and Africa on the east.