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Antarctic Circle

noun

an imaginary line drawn parallel to the equator, at 23° 28prime; N of the South Pole: between the South Frigid Zone and the South Temperate Zone.

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for antarctic circle

Antarctic Circle

noun

the imaginary circle around the earth, parallel to the equator, at latitude 66° 32′ S; it marks the southernmost point at which the sun appears above the level of the horizon at the winter solstice
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Science definitions for antarctic circle

Antarctic Circle

[ănt-ärk′tĭk]

The parallel of latitude approximately 66°33′ south. It forms the boundary between the South Temperate and South Frigid zones.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Culture definitions for antarctic circle

Antarctic Circle

An imaginary circle around the Earth about three-quarters of the way from the equator to the South Pole.

Note

The Antarctic Circle corresponds to the Arctic Circle in the Northern Hemisphere.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.