polar-circle

polar circle

noun
either the Arctic or the Antarctic Circle.

Origin:
1545–55

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Collins
World English Dictionary
polar circle
 
n
Arctic Circle a term for either the Antarctic Circle

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
polar circle  
The Arctic Circle or the Antarctic Circle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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