Definition of aureoles:
(n) :
A circle of light or halo around the head of a deity or a saint.
(n) :
(by extension) Any luminous or colored ring that encircles something.
(v) :
(transitive) To surround with, or as if with, a halo.
(n) :
(astronomy) A corona.
(n) :
(geology) A ring around an igneous intrusion.
(n) :
(theology) Alternative form of aureola (“increment to blessedness”). [Radiance of luminous cloud that surrounds the figure in a painting of a sacred personage.]