- the science dealing with light and its effects on living organisms.
Origin of photodynamics
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- (functioning as singular) 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
- The science that deals with the activating effects of light on living organisms.
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- The scientific study of the effects of light on organic compounds and on the metabolisms of living things.
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