Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
scintillŭla, ae, f. dim. [scintilla], a little spark, sparklet (rare): eas in pueris virtutum quasi scintillulas videmus, e quibus accendi philosophi ratio debet, Cic. Fin. 5, 15, 43: vitae, Tert. Anim. 23: animae, Plaut. Trin. 2, 4, 91 Fleck.