Definition of antarctics:
(adj) :
Of, from, or pertaining to Antarctica and the south polar regions.
(n) :
A continental region, one of the major ecozones of the world, covering the south polar regions, especially those south of the Antarctic Convergence; or, in accordance with the Antarctic Treaty System, the 60th parallel south.
(adj) :
(obsolete) Southern.
(adj) :
(figuratively, obsolete) Opposite, contradictory.
(adj) :
Alternative spelling of Antarctic. [Of, from, or pertaining to Antarctica and the south polar regions.]