IPA: /ɪˈfʌldʒəns/
KK: /ɪˈfʌldʒəns/
A bright and shining light or glow that is very impressive and beautiful.
The effulgence of the sun made the entire landscape sparkle.
Effulgence is formed from "ex-" (meaning out) and "fulgere" (meaning to shine). The word describes a shining forth or radiance that emanates outward.
Imagine light 'shining out' ('ex-') brightly — that's what effulgence means.