scintillate vs scintilla

scintillate is not a noun while scintilla is a noun.

Word	Noun	Adjective	Verb	Adverb
scintillate	No	No	Yes	No
scintilla	Yes	No	No	No

scintillate (noun)	scintilla (noun)
	a sparkling glittering particle
	a tiny or scarcely detectable amount

scintillate (verb)	scintilla (verb)
be lively or brilliant or exhibit virtuosity
fluoresce momentarily when struck by a charged particle or high-energy photon
emit or reflect light in a flickering manner
give off
reflect brightly