'Arctic' definitions:

Definition of 'Arctic'

From: WordNet
adjective
Of or relating to the Arctic; "the Arctic summer" [syn: north-polar, Arctic]
adjective
Extremely cold; "an arctic climate"; "a frigid day"; "gelid waters of the North Atlantic"; "glacial winds"; "icy hands"; "polar weather" [syn: arctic, frigid, gelid, glacial, icy, polar]
noun
The regions to the north of the Arctic Circle centered on the North Pole [syn: Arctic, Arctic Zone, North Frigid Zone]
noun
A waterproof overshoe that protects shoes from water or snow [syn: arctic, galosh, golosh, rubber, gumshoe]

Synonyms of 'arctic'

From: Moby Thesaurus