polar circle

American  

noun

1. either the Arctic or the Antarctic Circle.

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polar circle British  

noun

1. a term for either the Arctic Circle Antarctic Circle

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polar circle Scientific  

1. The Arctic Circle or the Antarctic Circle.

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Etymology

Origin of polar circle

First recorded in 1545–55

Example Sentences

“We basically achieved everything we set out to do,” the expedition’s leader, Markus Rex, told The Associated Press by satellite phone as it left the polar circle last week.

From Washington Times • Oct. 12, 2020

When the French government sent Maupertuis within the polar circle, to ascertain the exact figure of the earth, it was George Graham, Clock-maker of Fleet Street, who supplied the requisite instruments.

From Captains of Industry or, Men of Business Who Did Something Besides Making Money by Parton, James

The musk-ox had retreated to the polar circle.

From Ancient Man The Beginning of Civilizations by Van Loon, Hendrik Willem

We cannot delay in these waters, and, after all, the one thing of real importance to us is to get out of the polar circle before the winter makes it impassable.”

From An Antarctic Mystery by Hoey, Frances Cashel

Before us was the Hestmand, or Horseman, who bridles his rocky steed with the polar circle.

From Northern Travel Summer and Winter Pictures of Sweden, Denmark and Lapland by Taylor, Bayard