A disturbance or fluctuation in the Earth's outer magnetosphere, usually caused by streams of charged particles (plasma) given off by solar flares. The entry of large amounts of plasma into the upper atmosphere results in intense auroral displays and other magnetic phenomena in the polar regions of the Earth.
A rosy glow that suffuses snow-covered mountain peaks at dawn or dusk on a clear day.
The very beginning of the day; dawn.
(Gr. Myth., person, proper) The goddess of dawn: identified with the Roman goddess Aurora
The first or early part
The event or time of the appearance of the upper circumferential edge of the sun as it rises above the horizon, typically the eastern horizon except for extreme latitudes.
The time each morning at which daylight first begins.
An act of beginning; an initial effort:
the first light of day
Find another word for aurora. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for aurora, like: magnetic storm, alpenglow, cockcrow, daybreak, eos, borealis, morn, dawning, dayspring, morning and sunrise.