Thursday, 4 August 2016

New Word of the Week - Phosphorescence

Phosphorescence:

noun
  • the property of being luminous at temperatures below incandescence,as from slow oxidation in the case of phosphorus or after exposure tolight or other radiation.
  • a luminous appearance resulting from this.
  • any luminous radiation emitted from a substance after the removal ofthe exciting agent.
  • a fluorescence that persists after the bombarding radiationproducing it has stopped
  • a fluorescence for which the average lifetime of the excited atoms isgreater than 10 –8 seconds
  • the light emitted in phosphorescence
  • the emission of light during a chemical reaction, such asbioluminescence, in which insufficient heat is evolved to cause fluorescence 

Definition derived from dictionary.com 

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