phosphorescent

Shining with a faint light or luminosity like that of phosphorus; luminous without sensible heat.

A substance having the property of phosphorescence, or luminosity without heat.

Shining with a phosphoric light; luminous without sensible heat.

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.

A phosphorescent substance.

emitting light without appreciable heat as by slow oxidation of phosphorous