fulgurant

Origin:
1640–50; < Latin fulgurant-  (stem of fulgurāns,  present participle of fulgurāre ), equivalent to fulgur-  ( see fulgurate) + -ant-  -ant

Medical Dictionary
fulgurant  ful·gu·rant (f&oobreve;l'gyər-ənt, -gər-, fŭl'-)
adj. 
Characterized by sudden shooting pain.

World English Dictionary
fulgurate  (ˈfʌlɡjʊˌreɪt) 
 
— vb  
 rare  ( intr ) to flash like lightning 
 
[C17: from Latin fulgurāre , from fulgur  lightning] 
 
fulgurant 
 
— adj