The definition of aurora borealis is a well known light display in the Northern Hemisphere created by colliding charged particles in the atmosphere.noun
An example of Aurora Borealis is the light display also known as the Northern Lights.YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
Origin: L, lit., northern aurora: see Aurora & Boreas
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noun pl. aurora bo·re·al·is·es or aurorae borealis
Origin: New Latin aurōra boreālis : Latin aurōra, dawn + Latin boreālis, northern.