Pertaining to the dawn; dawning, eastern, like a new beginning.(adjective)
Rosy in colour, blushing, roseate.(adjective)
Pertaining to the aurora borealis.(adjective)
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Use "auroral" in a sentence
"We perceive what are termed auroral plates of a purple or reddish-violet color, more or less extended, according as this species of veil, formed by icy particles, extends to a greater or less distance from the poles."
"A powerful solar eruption on Valentine's day Feb. 14, the strongest solar flare in four or five years, led to to brilliant auroral displays and some disruptions in radio communications."
"Through the north window the heavens were emblazoned with an auroral display, which flamed and flared and died down into blackness."