光こう分ぶん解かい

noun

photolysis; photodecomposition; photodissociation

Technical term in chemistry and physics for the decomposition of a chemical compound by light.

• 光こう分ぶん解かいは、大た気いき化か学がくにおいて重じゅう要ようなプロセスです。

  Photolysis is an important process in atmospheric chemistry.

• この物ぶっ質しつは紫し外がい線せんによって光こう分ぶん解かいを起おこす。

  This substance undergoes photodecomposition when exposed to ultraviolet light.