I. adjective 1. relating to the south polar region or Antarctica. 2.
[Botany] 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.
II. noun — ( the Antarctic) 1. the Antarctic region.
– origin late Middle English: from Old French antartique or Latin antarcticus, from Greek antarktikos ‘opposite to the north’, from ant- ‘against’ + arktikos (see Arctic).