/ ˈpəʊlə(r); NAmE ˈpoʊ-/ adjective [ only before noun ]
1.
connected with, or near the North or South Pole :
the polar regions
polar explorers
2.
( technical ) connected with the poles (= the positive and negative ends) of a magnet :
polar attraction
3.
( formal ) used to describe sth that is the complete opposite of sth else :
The parents' position is often the polar opposite of the child's.
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WORD ORIGIN
mid 16th cent.: from medieval Latin polaris heavenly, from Latin polus end of an axis, from Greek polos pivot, axis, sky.