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

It is absorbed at the polar circle; hence south-west winds and rain; south-west sometimes cold.

From The Botanic Garden A Poem in Two Parts. Part 1: the Economy of Vegetation by Darwin, Erasmus

About eight o'clock on the morning of the 16th of March the Nautilus, following the fifty-fifth meridian, cut the Antarctic polar circle.

From Twenty Thousand Leagues under the Sea by Verne, Jules

When they go to each other's tupics or igloos to make calls, instead of taking their knitting, the belles of the polar circle take their chewing.

From Schwatka's Search by Gilder, William H. (William Henry)

If near the equator an instrument gives the latitude of the polar circle, it is a proof that it is not working rightly.

From The Expositor's Bible: The First Book of Samuel by Blaikie, William Garden