Southern Ocean - Wiktionary, the free dictionary

Formally adopted by the International Hydrographic Bureau's Limits of Oceans and Seas in 1928. (Omitted from the current 3rd edition,^[1] but restored in the draft 4th edition awaiting ratification.^[2])

the Southern Ocean

2. The portion of the World Ocean surrounding Antarctica, variously taken as the waters south of the Antarctic Circle, the waters south of 60° S, or the waters bounded by the Antarctic Convergence.

   Synonyms: Antarctic Ocean, Austral Ocean, (obsolete) Great Southern Ocean, (obsolete) Southern Icy Ocean, South Polar Ocean, South-Polar Ocean, (obsolete) South Sea

Per the terms of the 3rd edition of the Limits of Oceans and Seas currently in force, the territory of the "Antarctic or Southern Ocean" is presently divided among the Pacific, Atlantic, and Indian Oceans. The draft 4th edition published in 2002 calling it simply the "Southern Ocean" has not been adopted owing to other disputes, but is sometimes used as an authority for the ocean's existence.

• (oceans) ocean; Antarctic Ocean/Southern Ocean, Arctic Ocean, Atlantic Ocean, Indian Ocean, Pacific Ocean, ^{(Category: en:Oceans)}

• “Southern Ocean”, in OneLook Dictionary Search.
• “Southern Ocean”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.