Aurora Borealis Definition

bôrē-ălĭs
aurora-borealis
noun
An aurora that occurs in northern regions of the earth.
American Heritage
Irregular, luminous phenomena, as streamers, visible at night in a zone surrounding the north magnetic pole and produced in the ionosphere when atomic particles strike and excite atoms; northern lights.
Webster's New World

The aurora of the northern hemisphere.

Wiktionary
Synonyms:

Origin of Aurora Borealis

  • From New Latin aurora borealis, from Latin Aurora (“Roman goddess of the dawn”) + borealis (“northern”)

    From Wiktionary

  • New Latin aurōra boreālis Latin aurōra dawn Latin boreālis northern

    From American Heritage Dictionary of the English Language, 5th Edition

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