1A flash or sparkle of light.
- What a whirl, what a swirl, what a syncopating scintillation of networking, flirting and aerobic socializing this week mixes up!
- The dragon shattered into the shadows as the scintillation of explosive elemental forces raced out and away from the impact.
- It is continuing the six-stringed scintillation that originated on the band's first effort.
1.2 Physics A small flash of visible or ultraviolet light emitted by fluorescence in a phosphor when struck by a charged particle or high-energy photon.
- I loved to hold its face close to mine in the dark and watch the scintillations produced every time a radium nucleus decayed.
- Unlike other carbon-dating methods that monitor scintillations produced by radioactive decay, the TAMS method counts the actual number of carbon isotope atoms in a sample.
- More recently, astrophysicists explained the intraday variability in luminosity as a scintillation in the interstellar medium rather than rapid quasar rotation.
1.3 Astronomy The twinkling of the stars, caused by the earth’s atmosphere diffracting starlight unevenly.
- They were looking for a differential shift of less than one second of arc; even on a perfectly still night, the amount of scintillation or blurring shown by stars due to atmospheric turbulence is of this order.
- Light and radio waves get refracted in a phenomenon known as ionospheric scintillation (similar to the way light is refracted by water, such that a pencil looks bent when it is halfsubmerged in a glass of water).
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