the glow from street and domestic lighting that obscures the night sky and hinders the observation of faint stars
WordReference Random House Unabridged Dictionary of American English © 2025
light′ pollu′tion,
- Ecologyunwanted or harmful light, as from bright street lights or neon signs.
- Astronomyartificial illumination of the sky that sets a limit on the faintness of stars that can be observed or photographed.
- 1970–75
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