Coruscation /(k?r`?s-k?"sh?n)/

Cor·us·ca·tion

Coruscation

n.
  1. A sudden flash or play of light.
    A very vivid but exceeding short-lived splender, not to call t a little coruscation.
  2. A flash of intellectual brilliancy.
    He might have illuminated his times with the incessant corcations of his genius.