Arctic (adjective)

1. Of or in the region of the earth surrounding the North Pole, or of the regions round the Antarctic Circle.
2. Extremely cold.

Origin:

Early 17th century: from latin arcticus, from greek arktikos, from arktos "bear" (the constellation being so called because it lies in the region of the sky in which the bear turns round the pole).

Examples:

1. The arctic tundra is a cold, inhospitable place.
2. The arctic fox is well adapted to the cold environment.
3. The arctic sea ice is melting.
4. Arctic explorers have to deal with harsh weather conditions.
5. The arctic temperature was well below freezing.