aurora borealis
aurora bo·re·al·is
noun \-ˌbȯr-ē-ˈa-ləs\Definition of AURORA BOREALIS
: an aurora that occurs in earth's northern hemisphere —called also northern lights
See Origin of AURORA BOREALIS
New Latin, literally, northern dawn
First Known Use: 1717
Rhymes with AURORA BOREALIS
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