Fluorescence

n.

1.

(Chemistry, Optics) A luminescence emitted by certain substances due to the absorption of radiation at one wavelength, and the almost instantaneous re-emission of radiation at another, usually longer wavelength. The re-radiation stops almost as soon as the incident radiation is halted, thus distinguishing this phenomenon from phosphorescence, in which re-radiation of light may continue for some time after the incident radiation is halted.

Noun

1.

fluorescence - light emitted during absorption of radiation of some other (invisible) wavelength

autoluminescence, bioluminescence, cathode luminescence, chemicoluminescence, chemiluminescence, corposant, crystalloluminescence, double corposant, electroluminescence, fata morgana, fox fire, ignis fatuus, luciferase, luciferin, luminescence, luminophor, marshfire, noctiluscence, phosphor, phosphorescence, photoluminescence, radioluminescence, thermoluminescence, tribofluorescence, triboluminescence, tribophosphorescence, wisp, witch fire