Definitions of scintillation:

  • noun:   the twinkling of the stars caused when changes in the density of the earth's atmosphere produce uneven refraction of starlight
  • noun:   a brilliant display of wit
  • noun:   (physics) a flash of light that is produced in a phosphor when it absorbs a photon or ionizing particle
  • noun:   a rapid change in brightness; a brief spark or flash
  • noun:   the quality of glittering or sparkling brightly