Source : Webster's Revised Unabridged Dictionary (1913)

Fulgurant \Ful"gu*rant\a. [L. fulgurans, p. pr. of fulgurare.]
   Lightening. [R.] --Dr. H. More.

Source : WordNet®

fulgurant
     adj : amazingly impressive; suggestive of the flashing of
           lightning; "the skater's dazzling virtuosic leaps";
           "these great best canvases still look as astonishing
           and as invitingly new as they did...when...his
           fulgurant popularity was in full growth"- Janet
           Flanner; "adventures related...in a style both vivid
           and fulgurous"- Idwal Jones [syn: {dazzling}, {eye-popping},
            {fulgurous}]