D defs.my
Entry 2 senses Webster, 1913

Scintillation

· Scin·til·la·tion · IPA /ˌsɪn.təˈleɪ.ʃən/
01 n. The act of scintillating.
  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.