SCINTILLATION

scintillation. Scintillation, n. the act of sparkling or shining

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Scin′til‐la″tion (?), n. [[L. scintillatio: cf. F. scintillation.]] 1. 1. The act of scintillating.
2. 2. A spark or flash emitted in scintillating.
These scintillations are . . . the inflammable effluences discharged from the bodies collided. Sir T. Browne.