intr.v. scin·til·lat·ed, scin·til·lat·ing, scin·til·lates 1. To send forth light in flashes; sparkle. See Synonyms at flash. 2. To be scintillating: dinner conversation that scintillated. [Latin scintillāre, scintillāt-, from scintilla, spark.] scintil·lant adj. |
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