Entry 1 sense Webster, 1913 Refulgence /(r?*f?l"jens)/ · Re·ful·gence · IPA /ɹɪˈfʌl.d͡ʒənts/ 01 n. The quality of being refulgent; brilliancy; splender; radiance. 1. The quality of being refulgent; brilliancy; splender; radiance.