Nouns

(n)scintillation(physics) a flash of light that is produced in a phosphor when it absorbs a photon or ionizing particle
(n)twinkle, scintillation, sparklinga rapid change in brightness; a brief spark or flash
(n)scintillationa brilliant display of wit
(n)glitter, glister, glisten, scintillation, sparklethe quality of shining with a bright reflected light
(n)scintillationthe twinkling of the stars caused when changes in the density of the earth's atmosphere produce uneven refraction of starlight