Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Modern Latin
Origin: polaris, from Latin polus; POLE1

polar

adjective
     
Related topics: Physics, Geography
po‧lar
1SG 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.
3HP technical relating to one of the poles of a magnet

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