Coronal

a.	1.	Of or pertaining to a corona (in any of the senses). The coronal light during the eclipse is faint. - Abney.
	2.	Of or pertaining to a king's crown, or coronation. The law and his coronal oath require his undeniable assent to what laws the Parliament agree upon. - Milton.
	3.	Of or pertaining to the top of the head or skull.
	4.	(Zool.) Of or pertaining to the shell of a sea urchin. Coronal suture (Anat.) a suture extending across the skull between the parietal and frontal bones; the fronto-parietal suture.
n.	1.	A crown; wreath; garland.
	2.	The frontal bone, over which the ancients wore their coronæ or garlands.

Noun

1.

coronal - flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes Synonyms: chaplet, lei, wreath, garland

bay wreath, chaplet, crown, flower arrangement, garland, laurel wreath, laurels, lei, wreath