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The chemistry of the effects of light on chemical systems.

pho′to·chem′i·cal (-ĭ-kəl) adj.
pho′to·chem′i·cal·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) the branch of chemistry concerned with the chemical effects of light and other electromagnetic radiations. Also called: actinochemistry
ˌphotoˈchemist n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌfoʊ toʊˈkɛm ə stri)

the branch of chemistry that deals with the chemical action of light.
pho`to•chem′i•cal (-ɪ kəl) adj.
pho`to•chem′i•cal•ly, adv.
pho`to•chem′ist, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.photochemistry - branch of chemistry that deals with the chemical action of light
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
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References in periodicals archive ?
'This is very different from fluorophores found in other vertebrates, which are usually proteins or polyenic chains,' Maria Gabriella Lagorio, a photochemist and co-author of the paper, told Chemistry World.
Pottier, a photochemist, has devoted much of his research career to the development of the fields of photobiology and photomedicine, which involves the use of visible light to activate biological processes.