scintillating

[sin-tl-ey-ting]
adjective
1.
animated; vivacious; effervescent: a scintillating personality.
2.
witty; brilliantly clever: a scintillating conversationalist; a play full of scintillating dialogue.

Origin:
1880–85; scintillate + -ing1

scintillatingly, adverb
unscintillating, adjective
Dictionary.com Unabridged

scintillate

[sin-tl-eyt]
verb (used without object), scintillated, scintillating.
1.
to emit sparks.
2.
to sparkle; flash: a mind that scintillates with brilliance.
3.
to twinkle, as the stars.
4.
Electronics. (of a spot of light or image on a radar display) to shift rapidly around a mean position.
5.
Physics.
a.
(of the amplitude, phase, or polarization of an electromagnetic wave) to fluctuate in a random manner.
b.
(of an energetic photon or particle) to produce a flash of light in a phosphor by striking it.
verb (used with object), scintillated, scintillating.
6.
to emit as sparks; flash forth.

Origin:
1615–25; < Latin scintillātus (past participle of scintillāre to send out sparks, flash). See scintilla, -ate1

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
scintillate (ˈsɪntɪˌleɪt)
 
vb
1.  (also tr) to give off (sparks); sparkle; twinkle
2.  to be animated or brilliant
3.  physics to give off flashes of light as a result of the impact of particles or photons
 
[C17: from Latin scintillāre, from scintilla a spark]
 
'scintillant
 
adj
 
'scintillantly
 
adv

scintillating (ˈsɪntɪˌleɪtɪŋ)
 
adj
1.  sparkling; twinkling
2.  animated or brilliant
 
'scintillatingly
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

scintillate
1623, from L. scintillatus, pp. of scintillare "to sparkle," from scintilla "spark" (see scintilla).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
It was surrounded by a scintillating ring in the same or in the opposite eye.
Frankly, his report does not make for scintillating reading.
There were times the baseball wasn't all that scintillating, either.
But no matter what it is called, it is a scintillating entertainment which
  pleased the first night audience immensely.
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