aurora australis

auro·ra aus·tra·lis

[aw-strey-lis]
noun Meteorology.
the aurora of the Southern Hemisphere.
Also called southern lights.


Origin:
1735–45; < Neo-Latin: southern aurora; see austral

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World English Dictionary
aurora australis (ɒˈstreɪlɪs) [Click for IPA pronunciation guide]
 
n
(sometimes capital) Also called: southern lights the aurora seen around the South Pole
 
[New Latin: southern aurora]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Aurora australis is always a great word to know.
So is quincunx. Does it mean:
a chattering or flighty, light-headed person.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
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