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WordNet-Online 
 Definitions from WordNet
Noun polar zone has 1 sense 
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| Definitions from the WebPolar ZoneDefinition: The polar zone is a geographical region near the Earth's poles where the climate and environmental conditions are extremely cold. Example Sentences:
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| polar coordinate polar front polar glacier polar hare polar molecule polar opposition polar solvent polar star polar zone polarimeter polaris polarisation polariscope polarise polarised polarities polarity 
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