from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Either of two zones of the Earth that lie between the poles and either the Arctic Circle or the Antarctic Circle

from the GNU version of the Collaborative International Dictionary of English

  • adj. that part of the earth which lies between either polar circle and its pole. It extends 23� 28� from the pole. See the Note under Arctic.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the part of the Earth's surface forming a cap over a pole; characterized by frigid climate


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