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radiant energy

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noun Physics.
  1. energy transmitted in wave motion, especially electromagnetic wave motion.
  2. light1(def 2a).
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Origin of radiant energy

First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for radiant energy

radiant energy

noun
  1. energy that is emitted or propagated in the form of particles or electromagnetic radiation. It is measured in joulesSymbol: Q e
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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

radiant energy in Science

radiant energy

  1. 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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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.