This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

verb-intransitive. To throw off sparks; flash.

verb-intransitive. To sparkle or shine. See Synonyms at flash.

verb-intransitive. To be animated and brilliant: dinner conversation that scintillated.

v. To give off (sparks or flashes).

v. To give off sparks; to shine as if emanating sparks; to twinkle or glow.

v. To throw off like sparks.

verb-intransitive. To emit sparks, or fine igneous particles.

verb-intransitive. To sparkle, as the fixed stars.

To emit sparks; hence, to sparkle or twinkle, as the fixed stars.

Synonyms Sparkle, Glister, etc. (see glare, intransitive verb) coruscate.

v. physics: fluoresce momentarily when struck by a charged particle or high-energy photon

v. reflect brightly

v. be lively or brilliant or exhibit virtuosity

v. give off

v. emit or reflect light in a flickering manner

"A small, circular wave emanating from a central point. scintillate"

scintillated    scintillates    scintillating   

fluoresce    shine    reflect    be    emit    give out    give off    beam   

tinsel    scintillation    scintilla    scintillator    stencil   

scintillated    scintillating   

flash    twinkle