n.
1.(physics) a flash of light that is produced in a phosphor when it absorbs a photon or ionizing particle
2.a rapid change in brightness
3.a brilliant display of wit
4.the quality of glittering or sparkling brightly
5.the twinkling of the stars caused when changes in the density of the earth's atmosphere produce uneven refraction of starlight
Idiom of the Day
on (someone or something's) last legs
almost worn out or finished or broken, close to exhaustion or close to death
My computer is on its last legs and soon I will have to buy a new one. I was on my last legs when I came home from shopping.