Source : Webster's Revised Unabridged Dictionary (1913)

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.

            As the electrical globe only scintillates when
            rubbed against its cushion.           --Sir W.
                                                  Scott.

   2. To sparkle, as the fixed stars.

Source : WordNet®

scintillating
     adj 1: brilliantly clever; "scintillating wit"; "a play full of
            scintillating dialogue"
     2: marked by high spirits or excitement; "his fertile
        effervescent mind"; "scintillating personality";
        "sparkling conversation"; "a row of sparkly cheerleaders"
        [syn: {bubbling}, {effervescent}, {sparkling}, {sparkly}]
     3: having brief brilliant points or flashes of light; "bugle
        beads all aglitter"; "glinting eyes"; "glinting water";
        "his glittering eyes were cold and malevolent"; "shop
        window full of glittering Christmas trees"; "glittery
        costume jewelry"; "scintillant mica"; "the scintillating
        stars"; "a dress with sparkly sequins"; "`glistering' is
        an archaic term" [syn: {aglitter(p)}, {coruscant}, {fulgid},
         {glinting}, {glistering}, {glittering}, {glittery}, {scintillant},
         {sparkling(a)}, {sparkly}]