South Atlantic

[ south at-lan-tik ]

noun

1. the region of the world that lies in the Southern Hemisphere of the Atlantic Ocean, including all the coastal countries, islands, and archipelagos located there:

   I’ve got relatives throughout the South Atlantic, but my cousins in Uruguay are the only ones I really know.

adjective

1. of or relating to the region of the world that lies in the Southern Hemisphere of the Atlantic Ocean, often specifically to the South Atlantic Ocean itself:

   their South Atlantic adventures aboard a small fishing boat.