definition of
[aurora]

[1] #1 aurora n. [dawn, dawning, morning, first light, daybreak, break of day, break of the day, dayspring, sunrise, sunup, cockcrow] the first light of day; "we got up before dawn"; "they talked until morning". wn

[2] #2 aurora n. an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force. wn

[3] #3 aurora n. [Aurora] (Roman mythology) goddess of the dawn; counterpart of Greek Eos. wn