Answer: scintillation

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