From the ArcaMax Publishing, Vocabulary Newsletter:
http://www.arcamax.com/news/vocabulary/s-572986-921342
refulgent \rih-FUL-juhnt\ (adjective) - Shining brightly; radiant;
brilliant; resplendent.
"For an instant, refulgent in his halo of media lights, the camerlengo
looked celestial, like some kind of modern deity." -- Dan Brown,
'Angels and Demons'
Refulgent comes from the present participle of Latin refulgere, "to
flash back, to shine brightly," from re-, "back" + fulgere, "to
shine."