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photo opportunity
photo story
photoactinic
photoactive
photoautotroph
photobiology
photobiotic
photoblastic
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photodecomposition
pho·to·de·com·po·si·tion [ ftō dee kòmpə zísh'n ]


noun 
Definition:
 
chemical breakdown induced by light: the breakdown of a chemical compound into simpler substances by means of incident electromagnetic energy, especially visible light
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