SCINTILLATION

/ˌsɪntɪˈleɪʃən/ Scrabble 15 Words With Friends 20

Definition

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. — synonyms: twinkle, sparkling
noun a brilliant display of wit.
noun the quality of shining with a bright reflected light. — synonyms: glitter, glister, glisten, sparkle
noun the twinkling of the stars caused when changes in the density of the earth's atmosphere produce uneven refraction of starlight.