scintillation

scintillation - noun

(physics) a flash of light that is produced in a phosphor when it absorbs a photon or ionizing particle

a rapid change in brightness; a brief spark or flash

a brilliant display of wit

the quality of shining with a bright reflected light

the twinkling of the stars caused when changes in the density of the earth's atmosphere produce uneven refraction of starlight

scintillation - thesaurus