Definition of phosphorescence in English:


Line breaks: phos¦phor|es¦cence
Pronunciation: /ˌfɒsfəˈrɛs(ə)ns


[mass noun]
1Light emitted by a substance without combustion or perceptible heat: the stones overhead gleamed with phosphorescence
More example sentences
  • Another boat chugged past and at that moment our world exploded in hissing silvery blue, the sea whisking and shining in a turmoil of a bustle of fish and phosphorescence, like coins gleaming in a dark, still pool.
  • A large cavern, lit only by the faintest glimmer of phosphorescence, was exposed, a vast lake in the centre.
  • Since that time, phosphorescence has been used to describe substances that shine in the dark without burning.
1.1 Physics The emission of radiation in a similar manner to fluorescence but on a longer timescale, so that emission continues after excitation ceases.
More example sentences
  • Thermoluminescence is phosphorescence of a material due to heating.
  • One piece of ore that missed the smelter contained some secondary willemite with a very long phosphorescence.
  • The high degree of iodine substitution in this aromatic molecule facilitates intersystem crossing, and rose bengal exhibits significant phosphorescence.



More example sentences
  • Of course, the use of electrons, photons, phosphorescent light and fluorescence microscopy largely remain a mystery to me, but not because their capacity for imaging is itself mysterious.
  • Many diamonds are fluorescent and phosphorescent under ultraviolet radiation.
  • All barites that fluoresce are phosphorescent for variable lengths of time after extended ultraviolet radiation exposure.

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