light pollution(redirected from Unenviromentally-friendly lighting)
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Related to Unenviromentally-friendly lighting: LED lighting
Illumination of the night sky by electric lights, as in urban areas, that interferes with astronomical observations and can have negative ecological effects.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
the glow from street and domestic lighting that obscures the night sky and hinders the observation of faint stars
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014