You searched for: “chemoluminescence
chemiluminescence, chemoluminescence (noun) (normally used only in the singular form)
1. Emission of brightness accompanying a chemical reaction, as in the oxidation of phosphorus: The eerie glimmer of the mushrooms on the forest floor at dusk was caused by chemiluminescence, the chemical action that produces a glowing shine.
2. In physical chemistry, any process in which a chemical reaction produces visible rays without a corresponding increase in temperature: In "bioluminescence", the blinking generated by fireflies, is a form of chemiluminescence.