scintillation

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

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; a brief spark or flash
noun a brilliant display of wit

From scintillate + -ion.

Then, again, the scintillations vary. — Two on a Tower, Thomas Hardy
Notwithstanding which, there was a scintillation of sparks. — The Amazing Marriage — Complete, George Meredith
"To save you" said the hermit, with a scintillation of his half-pitiful smile. — Blown to Bits; or, The Lonely Man of Rakata, R. M. (Robert Michael) Ballantyne

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