arc·tic /ˈɑrktɪk, ˈɑrtɪk/
 (a.)北極的,極寒的北極圈,北極地方


 Arc·tic, n.
 1. The arctic circle.
 2. A warm waterproof overshoe. [U.S.]

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 Arc·tic a.  Pertaining to, or situated under, the northern constellation called the Bear; northern; frigid; as, the arctic pole, circle, region, ocean; an arctic expedition, night, temperature.
 Note: ☞ The arctic circle is a lesser circle, parallel to the equator, 23° 28´  from the north pole. This and the antarctic circle are called the polar circles, and between these and the poles lie the frigid zones. See Zone.


 Arctic
      adj 1: at or near the north pole [syn: north-polar]
      2: of or relating to the Arctic; "Arctic circle"
      3: extremely cold; "an arctic climate";  "a frigid day"; "gelid
         waters of the North Atlantic"; "glacial winds"; "icy
         hands"; "polar weather" [syn: frigid, gelid, glacial,
          icy, polar]
      n 1: the regions north of the Arctic Circle centered on the North
           Pole [syn: Arctic Zone, North Frigid Zone]
      2: a waterproof overshoe that protects shoes from water or snow
         [syn: galosh, golosh, rubber, gumshoe]