phosphorescence Syllabification: (phos·pho·res·cence)Pronunciation: /ˌfäsfəˈresəns/Definition of phosphorescence noun light emitted by a substance without combustion or perceptible heat:the stones overhead gleamed with phosphorescence Physics the emission of radiation in a similar manner to fluorescence but on a longer timescale, so that emission continues after excitation ceases. Derivatives phosphorescent adjective phosphorescence in other Oxford dictionaries Definition of phosphorescence in the British & World English dictionary
