night-sky light

[ nahyt-skahy ]
/ ˈnaɪtˌskaɪ /

noun

the faint glow of the night sky, caused by such phenomena as airglow and zodiacal light.

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Origin of night-sky light

First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020