Opposite to the northern or arctic pole; relating to the southern pole or to the region near it, and applied especially to a circle, distant from the pole 23° 28". Thus we say the antarctic pole, circle, ocean, region, current, etc.

the area of the Earth that is located South of the Antarctic Circle - opposite of Arctic.

the region around the south pole: Antarctica and surrounding waters

at or near the south pole

The South Polar region.

Of or relating to the area around the geographic South Pole, from 90° South to the Antarctic Circle at approximately 66 1/2°South latitude, including the continent of Antarctica. Along the Antarctic Circle, the sun does not set on the day of the summer solstice (approximately December 21st) and does not rise on the day of the winter solstice (approximately June 21st).