scintillation [ˌsɪntlˈeɪʃən] n.
1.) The action of scintillating; emission of sparks or spark-like flashes of light.
2.) An instance of this; a flash, a spark.
3.) The twinkling or tremulous motion of the light of the fixed stars.
4.) The flashing of the eyes.
5.) Nucl. Physics. A small flash of visible or ultraviolet light emitted by fluorescence in a phosphor when it is struck by a charged particle or high-energy photon.
6.) fig. A flash, a brilliant display (of wit, of thought) (O.E.D. 2nd Ed.).
Etymology: Latin scintillare, scintillat-, from scintilla, spark.
"He had made a new system in making a staff, a world with full and fair proportions; in which, though the old cities and dynasties had passed away, fairer and more glorious ones had taken their places. And now he saw by the heap of shavings still fresh at his feet, that, for him and his work, the former lapse of time had been an illusion, and that no more time had elapsed than is required for a single scintillation from the brain of Brahma to fall on and inflame the tinder of a mortal brain. The material was pure, and his art was pure; how could the result be other than wonderful?" (Walden, Henry David Thoreau, 1854).