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aurorae australis

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aurora aus·tra·lis   (ô-strā'lĭs)   
n.   pl. aurora aus·tra·lis·es (-lĭ-sĭz) or aurorae australis
An aurora that occurs in southern regions of the earth. Also called southern lights.

[New Latin aurōra austrālis : Latin aurōra, dawn + Latin austrālis, southern.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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