artificial daylight
noun
physics artificial light having approximately the same spectral characteristics as natural daylight
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use artificial daylight in a sentence
The modern artificial-daylight lamps make it possible to illuminate galleries with light at night which approximates daylight.
Artificial Light | M. Luckiesh
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