The Collaborative International Dictionary of English v.0.48:

Arctic \Arc"tic\, n.
   1. The arctic circle.
      [1913 Webster]

   2. A warm waterproof overshoe. [U.S.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Arctic \Arc"tic\, a. [OE. artik, OF. artique, F. arctique, L.
   arcticus, fr. Gr. ?, fr. ? a bear, also a northern
   constellation so called; akin to L. ursus bear, Skr. ?ksha.]
   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.
   [1913 Webster]

   Note: The arctic circle is a lesser circle, parallel to the
         equator, 23[deg] 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.
         [1913 Webster]

WordNet (r) 3.0 (2006):

Arctic
    adj 1: of or relating to the Arctic; "the Arctic summer" [syn:
           north-polar, Arctic]
    2: 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]
    n 1: the regions to the north of the Arctic Circle centered on
         the North Pole [syn: Arctic, Arctic Zone, North Frigid
         Zone]
    2: a waterproof overshoe that protects shoes from water or snow
       [syn: arctic, galosh, golosh, rubber, gumshoe]

The Free On-line Dictionary of Computing (19 January 2023):

Arctic

    A real-time functional language, used
   for music synthesis.

   ["Arctic: A Functional Language for Real-Time Control",
   R.B. Dannenberg, Conf Record 1984 ACM Symp on LISP and
   Functional Prog, ACM].

   (1995-01-16)