3 definitions found From The Collaborative International Dictionary of English v.0.48 [gcide]: Luminescence \Lu`mi*nes"cence\, n. [See {Luminescent}.] 1. (Physics) Any emission of light not ascribable directly to incandescence, and therefore occurring at low temperatures, as in phosphorescence and fluorescence or other luminous radiation resulting from vital processes, chemical action, friction, solution, or the influence of light or of ultraviolet or cathode rays, etc. [Webster 1913 Suppl.] 2. (Zool.) (a) The faculty or power of producing light by biological processes, as in the firefly and glowworm. Also called {bioluminescence}. (b) The light produced by biological or biochemical processes. Also called {bioluminescence}. [Webster 1913 Suppl. +PJC] From The Collaborative International Dictionary of English v.0.48 [gcide]: Bioluminescence \Bi"o*lu`mi*nes"cence\ (b[imac]"[-o]*l[=oo]`m[i^]*n[e^]s"ens), n. [Gr. bi`os life + luminescence.] a type of {luminescence} produced by biological or biochemical processes, such as a glowworm glow or the action of luciferase on luciferin. A well-known example is that of {firefly luminescence}. See also {luciferin}. [PJC] From WordNet (r) 2.0 [wn]: bioluminescence n : luminescence produced by physiological processes (as in the firefly)
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