aurora /ö-röˈrə/

1. (often with cap) the dawn
2. (with cap) the (Roman) goddess of dawn (poetic)
3. A rich orange colour
4. A luminous atmospheric phenomenon of electrical character seen in and towards the Polar regions, with a tremulous motion, and streamers of light

auroˈral or auroˈrean adjective

1. Relating to the dawn
2. Rosy
3. Fresh and beautiful
4. (auroral) of or relating to the aurora

auroˈrally adverb

aurora australis /ös-trāˈlis or os- or -äˈlis/ noun

The southern lights, a phenomenon in the southern hemisphere, similar to the aurora borealis (also with caps)

aurora borealis /bō-ri-āˈlis, -äˈlis or bö-/ or (rare) septentrionalis /sep-ten-tri-on-āˈlis or -äˈlis/ noun

The northern aurora or northern lights (also with caps)

auroral zones plural noun

The two regions (around the north and south geomagnetic poles) in which the aurora is most and most frequently seen, and electrical disturbances occur

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