Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
scintillate is a verb meaning "give off". It carries 5 recorded senses.
emit or reflect light in a flickering manner
“Does a constellation twinkle more brightly than a single star?”
celestial body
physics: fluoresce momentarily when struck by a charged particle or high-energy photon
“the phosphor fluoresced”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for scintillate come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.