Scintillation

n.	1.	The act of scintillating.
	2.	A spark or flash emitted in scintillating. These scintillations are . . . the inflammable effluences discharged from the bodies collided. - Sir T. Browne.

Noun	1.	scintillation - (physics) a flash of light that is produced in a phosphor when it absorbs a photon or ionizing particle
	2.	scintillation - a rapid change in brightness; a brief spark or flash Synonyms: sparkling, twinkle
	3.	scintillation - a brilliant display of wit
	4.	scintillation - the quality of glittering or sparkling brightly Synonyms: glisten, glister, glitter, sparkle
	5.	scintillation - the twinkling of the stars caused when changes in the density of the earth's atmosphere produce uneven refraction of starlight

aphorism, apothegm, black spot, blink, blinking, bloom, blooping, bon mot, boutade, bright idea, bright thought, brilliant idea, conceit, coruscation, crack, definition, epigram, facetiae, firefly, flare, flash of wit, flight of wit, fringe area, ghost, gibe, glance, glimmer, glimmering, glint, glisten, glister, glitter, glittering, glowworm, granulation, grid, happy thought, hard shadow, image, mot, multiple image, nasty crack, noise, persiflage, picture, picture noise, picture shifts, play of wit, pleasantry, quip, quips and cranks, rain, repartee, retort, riposte, rolling, sally, scanning pattern, scintilla, shading, shimmer, shimmering, smart crack, smart saying, snappy comeback, snow, snowstorm, spangle, spark, sparkle, stroboscopic light, stroke of wit, tinsel, turn of thought, twinkle, twinkling, wisecrack, witticism