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luminous energy

noun
  1. light1(def 2a).
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Origin of luminous energy

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for luminous energy

luminous energy

noun
  1. energy emitted or propagated in the form of light; the product of a luminous flux and its duration, measured in lumen secondsSymbol: Q v
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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