scintillation Get Printable Handwriting (scin-til-la-tion) 4 syllables Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. the act of scintillating; sparkling a spark; flash a brilliant display of wit Example Sentence There is the weird scintillation of the aurora. Synonyms twinkle; flash; glimmer; glitter; shine; sparkle Antonyms dull Hear It! Say It! Write It! scintillation Switch to cursive Start Share with your friends: