light pollution
noun Date: 1971 artificial skylight (as from city lights) that interferes especially with astronomical observations

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • light pollution — n. unwanted light in the night sky, as from city lights, that makes it more difficult for astronomers to see and photograph celestial objects …   English World dictionary

  • light pollution — ► NOUN ▪ excessive brightening of the night sky by street lights and other man made sources …   English terms dictionary

  • Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution …   Wikipedia

  • light pollution — noun : artificial skylight (as from city lights) that interferes with astronomical observations * * * noun [noncount] : light from cities, vehicles, etc., that makes it difficult to see things in the sky (such as stars) at night * * * ˈlight… …   Useful english dictionary

  • light pollution — 1. unwanted or harmful light, as from bright street lights or neon signs. 2. Astron. artificial illumination of the sky that sets a limit on the faintness of stars that can be observed or photographed. [1970 75] * * * …   Universalium

  • light pollution — noun An excess of artificial light, especially near urban areas, reducing visibility of stars, etc. in the night sky …   Wiktionary

  • light pollution — n. excessive artificial harmful lighting that men create (such as city street lights or neon signs; brightening of the night sky by electric lights that obstruct observation of celestial bodies …   English contemporary dictionary

  • light pollution — noun excessive brightening of the night sky by street lights and other man made sources …   English new terms dictionary

  • New England Light Pollution Advisory Group — The New England Light Pollution Advisory Group (NELPAG) is a volunteer organization founded in 1993 to educate the public on the benefits of using efficient, glare free outdoor night lighting. It is an affiliate of the International Dark Sky… …   Wikipedia

  • Pollution lumineuse — L’expression pollution lumineuse (light pollution, ou photopollution pour les anglophones) désigne à la fois la présence nocturne anormale ou gênante de lumière et les conséquences de l éclairage artificiel nocturne sur la faune, la flore, la… …   Wikipédia en Français

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