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black light

noun
1.
invisible infrared or ultraviolet light.
Origin
1925-1930
1925-30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for black light

black light

noun
1.
the invisible electromagnetic radiation in the ultraviolet and infrared regions of the spectrum
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
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black light in Science
black light  
Invisible ultraviolet radiation. Black light causes certain fluorescent materials to emit visible light.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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13
16
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