Definition of 'aurora'

Noun

1. the first light of day; "we got up before dawn"; "they talked until morning"
      Synonyms: dawn dawning morning first light daybreak break of day break of the day dayspring sunrise sunup cockcrow
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 Eos

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