Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
The radiant energy of electromagnetic waves in the visible portion of the electromagnetic spectrum.
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.
(Units) energy emitted or propagated in the form of light; the product of a luminous flux and its duration, measured in lumen seconds. Symbol: Qv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Switch to new thesaurus
|Noun||1.||luminous energy - the energy associated with visible light|
radiant energy - energy that is transmitted in the form of (electromagnetic) radiation; energy that exists in the absence of matter
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.