connected with, or near the North or South Pole 极地的；近地极的；南极（或北极）的 the polar regions 极区 polar ice 地极的冰 polar explorers 极地探险家
- (specialist)
connected with the poles (= the positive and negative ends) of a magnet 磁极的 polar attraction 极向引力
- (formal)
used to describe something that is the complete opposite of something else 完全相反的；截然对立的
Word Originmid 16th cent.: from medieval Latin polaris ‘heavenly’, from Latin polus ‘end of an axis’, from Greek polos ‘pivot, axis, sky’.