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Scintillation

ˌsɪntɪˈleɪʃn

Scintillation definitions
noun
scintillation scintillations
  1. a flash or sparkle of light

    "scintillations of diamond-hard light"

    • the process or state of emitting flashes of light
    • a small flash of visible or ultraviolet light emitted by fluorescence in a phosphor when struck by a charged particle or high-energy photon
    • the twinkling of the stars, caused by the earth's atmosphere diffracting starlight unevenly