The word polar is an adjective. Polar means (1) having a pair of equal and opposite charges, (2) being of crucial importance, (3) extremely cold, (4) characterized by opposite extremes; completely opposed.
Polar is also an adjective that means (1) of or existing at or near a geographical pole or within the Arctic or Antarctic Circles, (2) located at or near or coming from the earth's poles.
The following articles and web pages elaborate on the word polar.
The subarctic regions comprise lands that lie just south of the Arctic Circle, including areas of Canada and Siberia. Learn about the topography and climate of the subarctic region.
Recent reports claimed a large number of stink bugs were wiped out by the recent cold snap that swept through the Midwest and Northeast. It turned out to be too good to be true.
Emily Petsko. Mental Floss. Tuesday, 19 Feb 2019 17:30:00 -0500.
Nunavut's Department of Environment investigated after an elder shot two polar bears in January. Now, the department says no charges will be laid.
Canadian Broadcasting Corporation. Monday, 18 Feb 2019 05:30:00 EST.
The intense polar vortex that blanketed the Midwest and made its way to the East Coast with deadly subzero wild chills and snow may have had one benefit: killing off some bad bugs.
Travis Fedschun. Fox News. Sunday, 17 Feb 2019 16:02:00 GMT.
The extreme weather is due to a powerful Pacific Ocean jet stream pattern: Part of the polar jet stream is angled straight south along the U.S. West Coast from Alaska
CBS News. Thursday, 14 Feb 2019 19:50:36 +0000.