aurora meaning and definition

AURORA noun

Definition of aurora (noun)

1. the first light of day
   • "we got up before dawn"; "they talked until morning"
   • synonyms: break of day, break of the day, cockcrow, dawn, dawning, daybreak, dayspring, first light, morning, sunrise, sunup
   • antonym: sundown
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