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Light produced by chemical action usually at, or below, room temperature.
chemiluminescence, chemoluminescence (kem?i-loo?mi-nes'ens, kem?o-loo?mi-nes'ens)
Cold light or light resulting from a chemical reaction and without heat production. Certain bacteria, fungi, and fireflies produce this type of light.See: luciferase
the emission of light by chemical reactions, most commonly oxidation. (1) Used as a measure of metabolic activity of phagocytic cells, e.g. neutrophils, monocytes and macrophages. (2) A developing technique for marking the state of preservation of food. As the food deteriorates it begins to emit fluorescent light.