phosphorescent

Meanings

Plural: phosphorescents

Adjective Satellite

emitting light without appreciable heat as by slow oxidation of phosphorous
- "the phosphorescent glow of decaying wood"

Adj

Having the property of emitting light for a period of time after the source of excitation is taken away, e.g., in electrostatic storage tubes and cathode-ray tubes.

Noun

A phosphorescent substance.

Origin / Etymology

From phosphorus + -escent.
It's interesting to note that phosphorus is not phosphorescent. Some phosphoric mixtures can be luminescent through chemical reactions, but none exhibit literal phosphorescence.

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