1. (

• scintillation

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

2. (

• twinkle ,
• scintillation ,
• sparkling

) a rapid change in brightness; a brief spark or flash ;

3. (

• scintillation

) a brilliant display of wit ;

4. (

• glitter ,
• glister ,
• glisten ,
• scintillation ,
• sparkle

) the quality of shining with a bright reflected light ;

5. (

• scintillation ,

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