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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 au·ro·ra /əˈrorə, ɔ, ˈrɔr-/

From: Webster's Revised Unabridged Dictionary (1913)

 Au·ro·ra n.; pl. E. Auroras L. (rarely used) Auroræ
 1. The rising light of the morning; the dawn of day; the redness of the sky just before the sun rises.
 2. The rise, dawn, or beginning.
 3. Class. Myth. The Roman personification of the dawn of day; the goddess of the morning. The poets represented her a rising out of the ocean, in a chariot, with rosy fingers dropping gentle dew.
 4. Bot. A species of crowfoot.
 5. The aurora borealis or aurora australis (northern or southern lights).
 Aurora borealis i. e., northern daybreak; popularly called northern lights. A luminous meteoric phenomenon, visible only at night, and supposed to be of electrical origin. This species of light usually appears in streams, ascending toward the zenith from a dusky line or bank, a few degrees above the northern horizon; when reaching south beyond the zenith, it forms what is called the corona, about a spot in the heavens toward which the dipping needle points. Occasionally the aurora appears as an arch of light across the heavens from east to west. Sometimes it assumes a wavy appearance, and the streams of light are then called merry dancers. They assume a variety of colors, from a pale red or yellow to a deep red or blood color. The Aurora australis is a corresponding phenomenon in the southern hemisphere, the streams of light ascending in the same manner from near the southern horizon.

From: WordNet (r) 2.0

      n 1: the first light of day; "we got up before dawn"; "they
           talked until morning" [syn: dawn, dawning, morning,
            first light, daybreak, break of day, break of
           the day, dayspring, sunrise, sunup, cockcrow]
           [ant: sunset]
      2: an atmospheric phenomenon consisting of bands of light
         caused by charged solar particles following the earth's
         magnetic lines of force
      3: (Roman mythology) goddess of the dawn; counterpart of Greek
      [also: aurorae (pl)]