meaning of coronal
1. Of or pertaining to a corona (in any of the senses).
2. Of or pertaining to a kings crown, or coronation.
3. Of or pertaining to the top of the head or skull.
4. Of or pertaining to the shell of a sea urchin.
5. A crown; wreath; garland.
6. The frontal bone, over which the ancients wore their coronae or garlands.
7. flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes