scintillation
/ˌsɪntɪˈleɪʃən/noun
1- a flash or sparkle of light火花, 闪光。
1.1
- mass noun the process or state of emitting flashes of light发出火花（或闪光）。
1.2
- 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【物理】荧光。
1.3
- mass noun Astronomy the twinkling of the stars, caused by the earth's atmosphere diffracting starlight unevenly【天文】（地球大气对星光衍射不均造成的）星光闪烁。