Entry 1 sense Webster, 1913 Coruscate /(k?r"?s-k?t [or] k?-r?s"k?r)/ · Cor·us·cate · IPA /ˈkɒɹəskeɪt/ 01 v. i. To glitter in flashes; to flash. 1. To glitter in flashes; to flash. Syn. To glisten; gleam; sparkle; radiate.