Arctic
adj//ˈɑɹ(k)tɪk//arktisk, Arktis
(geography) Pertaining to the northern polar region of the planet, characterised by extreme cold and an icy landscape. [from 16th c.]
Extremely cold, snowy, or having other properties of extreme winter associated with the Arctic. [from 16th c.]
A continental region consisting of the portion of the Earth north of the Arctic Circle, containing the North Pole. [from 17th c.]