verb intransitiveWord forms: ˈscintilˌlated or ˈscintilˌlating
to give off sparks; flash; sparkle
to sparkle intellectually; be brilliant and witty
to give off (sparks, flashes, etc.)
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'scintillate'< L scintillatus, pp. of scintillare, to sparkle < scintilla, a spark