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polar lights

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noun (used with a plural verb)
  1. the aurora borealis in the Northern Hemisphere or the aurora australis in the Southern Hemisphere.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for polar lights

polar lights

pl n
  1. the aurora borealis in the N hemisphere or the aurora australis in the S hemisphere
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012