photodynamics

[ 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.

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Origin of photodynamics

First recorded in 1885–90; photo- + dynamics

OTHER WORDS FROM photodynamics

pho·to·dy·nam·ic, pho·to·dy·nam·i·cal, adjectivepho·to·dy·nam·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for photodynamic (1 of 2)

photodynamic
/ (ˌfəʊtəʊdaɪˈnæmɪk) /

adjective

of or concerned with photodynamics
involving or producing an adverse or toxic reaction to light, esp ultraviolet light
med denoting a therapy for cancer in which a cytotoxic drug is activated by a laser beam

British Dictionary definitions for photodynamic (2 of 2)

photodynamics
/ (ˌfəʊtəʊdaɪˈnæmɪks) /

noun

(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

Medical definitions for photodynamic (1 of 2)

photodynamic
[ fō′tō-dī-nămĭk ]

adj.

Of or relating to the energy of light.
Enhancing the effects of or inducing a toxic reaction to light, especially to ultraviolet light.

Medical definitions for photodynamic (2 of 2)

photodynamics
[ fō′tō-dī-nămĭks ]

n.

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.

Scientific definitions for photodynamic

photodynamics
[ fō′tō-dī-nămĭks ]

The scientific study of the effects of light on organic compounds and on the metabolisms of living things.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.