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[foh-toh-dahy-nam-iks] /ˌfoʊ toʊ daɪˈnæm ɪks/
noun, (used with a singular verb)
the science dealing with light and its effects on living organisms.
Origin of photodynamics
1885-90; photo- + dynamics
Related forms
photodynamic, photodynamical, adjective
photodynamically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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British Dictionary definitions for photodynamics


(functioning as sing) the branch of biology concerned with the effects of light on the actions of plants and animals
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
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photodynamics in Medicine

photodynamics pho·to·dy·nam·ics (fō'tō-dī-nām'ĭks)
The science that deals with the activating effects of light on living organisms.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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photodynamics in Science
The scientific study of the effects of light on organic compounds and on the metabolisms of living things.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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