Flashed or sparkled with a sudden, brilliant light; shone with a bright, glittering effect.
From Latin coruscare 'to glitter or flash.' The word entered English in the 18th century and is often used poetically or literarily to describe visual brilliance, especially diamonds or stars.
Coruscate has this wonderful dramatic quality—it's not just 'shone,' it's specifically that sudden, eye-catching glitter, which is why fancy descriptions of jewelry and nighttime scenes use it so much.
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