Meaning of POLAR in English

POLAR

po ‧ lar /ˈpəʊlə $ ˈpoʊlər/ BrE AmE adjective

[ Date: 1500-1600 ; Language: Modern Latin ; Origin: polaris , from Latin polus ; ⇨ ↑ pole 1 ]

1 . close to or relating to the North Pole or the South Pole:

As our climate warms up, the polar ice caps will begin to melt.

2 . polar opposite/extreme something that is the complete or exact opposite of something else:

Ortega’s cheerful landscapes are the polar opposites of Miller’s dark, troubled portraits.

3 . technical relating to one of the ↑ pole s of a ↑ magnet

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.