1. relating to the south polar region or Antarctica.
▪ relating to or denoting a phytogeographical kingdom comprising New Zealand, southern parts of Chile and Argentina, and islands in the South Atlantic and southern Indian Ocean.
noun
1. the Antarctic region.
Word Originlate Middle English: from Old French antartique or Latin antarcticus, from Greek antarktikos ‘opposite to the north’, from ant- ‘against’ + arktikos (see Arctic).
Antarctica is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Wikipedia