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aurora

PRIMARY MEANINGS OF: aurora

1
n
an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force
2
n
the first light of day
FULL DEFINITIONS OF: aurora
1

n an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force

Types:
aurora australis, southern lights
the aurora of the southern hemisphere
aurora borealis, northern lights
the aurora of the northern hemisphere
Type of:
atmospheric phenomenon
a physical phenomenon associated with the atmosphere
2

n the first light of day

Synonyms:
break of day, break of the day, cockcrow, dawn, dawning, daybreak, dayspring, first light, morning, sunrise, sunup
Antonyms:
sundown, sunset
the time in the evening at which the sun begins to fall below the horizon
Type of:
hour, time of day
clock time
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