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aurora borealis

From Longman Dictionary of Contemporary English
Related topics: Astronomy
aurora borealisau‧ro‧ra bo‧re‧a‧lis /əˌrɔːrə bɔːriˈeɪləs, ɔː- $ -ˈæl-/ noun [singular]  HAthe Northern Lights
Examples from the Corpus
aurora borealisThe sky was aflame with the aurora borealis, the eerily luminous northern lights.The aurora borealis was like that, too.
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