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aurora borealis

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noun aurora bo·re·al·is \-ˌbȯr-ē-ˈa-ləs\

Definition of aurora borealis

  1. :  an aurora that occurs in earth's northern hemisphere —called also northern lights



Origin and Etymology of aurora borealis

New Latin, literally, northern dawn


First Known Use: 1717


AURORA BOREALIS Defined for Kids

aurora borealis

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noun au·ro·ra bo·re·al·is \ə-ˌrȯr-ə-ˌbȯr-ē-ˈa-ləs\

Definition of aurora borealis for Students

  1. :  broad bands of light that have a magnetic and electrical source and that appear in the sky at night especially in the arctic regions




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