phosphorescence
Noun
Meaning
The quality or state of being phosphorescent; or the act of phosphorescing.
A phosphoric light.
Source: Webster's dictionarySynonyms
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Although the term phosphorescence was originally coined as a term by analogy with the glow from oxidation of elemental phosphorus, it is now reserved for another fundamentally different process—re-emission of light after illumination.
Becquerel's earliest works centered on the subject of his doctoral thesis: the plane polarization of light, with the phenomenon of phosphorescence and absorption of light by crystals.
Most applications of europium exploit the phosphorescence of europium compounds.
In other words, it gives off visible light through fluorescence, phosphorescence, or radioluminescence.
Particles often can be located by their emission of smoke when air strikes them, or by their phosphorescence in the dark.
Since that time, phosphors and phosphorescence were used loosely to describe substances that shine in the dark without burning.