Scintillate \Scin"til*late\, v. i. [imp. & p. p. {Scintillated}; p. pr. & vb. n. {Scintillating}.] [L. scintillare, scintillatum, from scintilla a spark. Cf. {Stencil}.] 1. To emit sparks, or fine igneous particles. [1913 Webster] As the electrical globe only scintillates when rubbed against its cushion. --Sir W. Scott. [1913 Webster] 2. To sparkle, as the fixed stars. [1913 Webster]