Etymology
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fluorescence (n.)

1852, "property of glowing in ultraviolet light," coined by English mathematician and physicist Sir George G. Stokes (1819-1903) from fluorspar (see fluorine), because in it he first noticed the phenomenon, + -escence, on analogy of phosphorescence.

updated on December 03, 2014

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Definitions of fluorescence from WordNet

fluorescence (n.)
light emitted during absorption of radiation of some other (invisible) wavelength;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.