Source : Webster's Revised Unabridged Dictionary (1913)

Coruscation \Cor`us*ca"tion\ (k?r`?s-k?"sh?n), n. [L.
   coruscatio: cf. F. coruscattion.]
   1. A sudden flash or play of light.

            A very vivid but exceeding short-lived splender, not
            to call ?t a little coruscation.      --Boyle.

   2. A flash of intellectual brilliancy.

            He might have illuminated his times with the
            incessant cor??cations of his genius. --I. Taylor.

   Syn: Flash; glitter; blaze; gleam; sparkle.

Source : WordNet®

coruscation
     n 1: the occurrence of a small flash or spark [syn: {glitter}, {sparkle}]
     2: a sudden or striking display of brilliance; "corruscations
        of great wit"