Scintillating

[sin-tl-ey-ting] /ˈsɪn tlˌeɪ tɪŋ/
adjective
1.
animated; vivacious; effervescent:
a scintillating personality.
2.
witty; brilliantly clever:
a scintillating conversationalist; a play full of scintillating dialogue.
verb (used without object), scintillated, scintillating.
1.
to emit sparks.
2.
to sparkle; flash:
a mind that scintillates with brilliance.
3.
to twinkle, as the stars.
4.
Electronics. (of a spot of light or image on a radar display) to shift rapidly around a mean position.
5.
Physics.

(of the amplitude, phase, or polarization of an electromagnetic wave) to fluctuate in a random manner.
(of an energetic photon or particle) to produce a flash of light in a phosphor by striking it.

verb (used with object), scintillated, scintillating.
6.
to emit as sparks; flash forth.
scintillating
/ˈsɪntɪˌleɪtɪŋ/
adjective
1.
sparkling; twinkling
2.
animated or brilliant
verb (mainly intransitive)
1.
(also transitive) to give off (sparks); sparkle; twinkle
2.
to be animated or brilliant
3.
(physics) to give off flashes of light as a result of the impact of particles or photons