photolytically

/ˌfoʊtəˈlɪtɪkli/
adverb
  1. In a way that involves or results from the breakdown of a chemical compound by light.
    • The compound breaks down photolytically, releasing oxygen gas.
    • These plastics degrade photolytically over time, which helps reduce waste.
    • The dye fades photolytically when exposed to direct sunlight.
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