Available Definitions:
1) a. - Of or pertaining to a corona (in any of the senses).
2) a. - Of or pertaining to a king's crown, or coronation.
3) a. - Of or pertaining to the top of the head or skull.
4) a. - Of or pertaining to the shell of a sea urchin.
5) n. - A crown; wreath; garland.
6) n. - The frontal bone, over which the ancients wore their coronae or garlands.