Definition of polar adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈpəʊlə(r)//
    ; NAmE NAmE//ˈpoʊlər//
    [only before noun]
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  1. 1connected with, or near the North or South Pole the polar regions polar ice polar explorers
  2. 2 (specialist) connected with the poles (= the positive and negative ends) of a magnet polar attraction
  3. 3(formal) used to describe something that is the complete opposite of something else The parents' position is often the polar opposite of the child's.
  4. Word Originmid 16th cent.: from medieval Latin polaris ‘heavenly’, from Latin polus ‘end of an axis’, from Greek polos ‘pivot, axis, sky’.
See the Oxford Advanced American Dictionary entry: polar

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