coronal

• POS: Adjective, Noun
• HYPHEN: cor=o=nal

CIDE DICTIONARY

coronal, a. [L. coronalis: cf. F. coronal.].

•  Of or pertaining to a corona (in any of the senses).  [1913 Webster]

  "The coronal light during the eclipse is faint."  [1913 Webster]
•  Of or pertaining to a king's crown, or coronation.  [1913 Webster]

  "The law and his coronal oath require his undeniable assent to what laws the Parliament agree upon."  [1913 Webster]
•  Of or pertaining to the top of the head or skull.  [1913 Webster]
•  Of or pertaining to the shell of a sea urchin.  [1913 Webster]

Coronal suture (Anat.), a suture extending across the skull between the parietal and frontal bones; the fronto-parietal suture.

coronal, n. 

•  A crown; wreath; garland.  Spenser.  [1913 Webster]
•  The frontal bone, over which the ancients wore their coronæ or garlands.  Hooper.  [1913 Webster]

OXFORD DICTIONARY

coronal, adj.
1 Astron. & Bot. of a corona.
2 Anat. of the crown of the head.

Idiom

coronal bone the frontal bone of the skull. coronal plane an imaginary plane dividing the body into dorsal and ventral parts. coronal suture a transverse suture of the skull separating the frontal bone from the parietal bones.

coronal, n.
1 a circlet (esp. of gold or gems) for the head.
2 a wreath or garland.

Etymology

ME, app. f. AF f. corone CROWN