- energy transmitted in wave motion, especially electromagnetic wave motion.
- light1(def 2a).
Origin of radiant energy
First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- energy that is emitted or propagated in the form of particles or electromagnetic radiation. It is measured in joulesSymbol: Q e
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
- Energy in the form of waves, especially electromagnetic waves. Radio waves, x-rays, and visible light are all forms of radiant energy.
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