Noun
English Wikipedia has an article on:photodegradationWikipedia
photodegradation (uncountable)
Any reduction or degradation in a useful property of a material because of a chemical change as a result of absorption of light.
Following months to years of photodegradation and oxidation in the ocean, this precursor gradually hardens, developing a dark grey or black colour, a crusty and waxy texture, and a peculiar odour that is at once sweet, earthy, marine, and animalic. Source: Internet
Research is focused on the secondary mechanisms of photodegradation of cellulose acetate to help make up for some of the limitations of biodegradation. Source: Internet
Thus, the primary photodegradation of cellulose acetate is considered insignificant to the total degradation process, since cellulose acetate and its impurities absorb light at shorter wavelengths. Source: Internet
Chemical breakdown TNT is a reactive molecule and is particularly prone to react with reduced components of sediments or photodegradation in the presence of sunlight. Source: Internet