- noun light produced by means other than heat, by processes such as phosphorescence, fluorescence or bioluminescence
- The emission of electromagnetic radiation, especially visible light, unaccompanied by high temperatures, such as those present in incandescence. Examples include bioluminescence, chemiluminescence, photolumines-cence, and electroluminescence. When luminescence persists for less than 10-8 second, it is called fluorescence, while phosphorescence persists longer. Also, the radiation emitted.
Not what you were looking for?