also: ひかりぶんかい
noun
photolysis; photodecomposition; photodissociation
Technical term in chemistry and physics for the decomposition of a chemical compound by light.
光分解は、大気化学において重要なプロセスです。
Photolysis is an important process in atmospheric chemistry.
この物質は紫外線によって光分解を起こす。
This substance undergoes photodecomposition when exposed to ultraviolet light.