scintillation (Noun) — (physics) a flash of light that is produced in a phosphor when it absorbs a photon or ionizing particle.
scintillation (Noun) — A rapid change in brightness; a brief spark or flash.
scintillation (Noun) — A brilliant display of wit.
scintillation (Noun) — The quality of shining with a bright reflected light.
scintillation (Noun) — The twinkling of the stars caused when changes in the density of the earth's atmosphere produce uneven refraction of starlight.