radiant energy

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radiant energy

energy that is emitted or propagated in the form of particles or electromagnetic radiation. It is measured in joules.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Radiant energy

Energy traveling in the form of electromagnetic waves, measured in units of energy such as joules or kilowatt hours. When this radiation is absorbed by an object in its path, then it may get absorbed partly or completely and transformed into some other form.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

radiant energy

[′rād·ē·ənt ′en·ər·jē]
(engineering)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.