either of two regions, one between the Arctic Circle and the North Pole, or one between the Antarctic Circle and the South Pole.
Origin of Frigid Zone
First recorded in 1590–1600
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
archaic the cold region inside the Arctic or Antarctic Circle where the sun's rays are very oblique
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
Either of two regions of the Earth of extreme latitude, the North Frigid Zone, extending north of the Arctic Circle, or the South Frigid Zone, extending south of the Antarctic Circle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.