scintillation


Concise Oxford English Dictionary © 2008 Oxford University Press:
scintillation/sɪntɪˈleɪʃ(ə)n/
noun
  • 1 a flash of light.

    ■ the process or state of emitting flashes.

  • 2 Physics a small flash of visible or ultraviolet light emitted by fluorescence in a phosphor when struck by a charged particle or high-energy photon.
  • 3 Astronomy the twinkling of the stars, caused by the earth's atmosphere diffracting starlight unevenly.
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