aurora

Từ điển Oxford Learners Wordfinder Dictionary

noun

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 (for: sunrise)
• Derivationally related forms:
auroral, aurorean, dawn (for: dawning), dawn (for: dawn)
• Hypernyms:
hour, time of day
2. an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force
• Derivationally related forms:
auroral
• Hypernyms:
atmospheric phenomenon
• Hyponyms:
aurora australis, southern lights, aurora borealis, northern lights
• Part Meronyms:
streamer