sagittal suture vs suture

sagittal suture and suture both are nouns.

Word	Noun	Adjective	Verb	Adverb
sagittal suture	Yes	No	No	No
suture	Yes	No	Yes	No

As nouns, suture is a hypernym of sagittal suture; that is, suture is a word with a broader meaning than sagittal suture:

Other hypernyms of sagittal suture include fibrous joint, sutura.

sagittal suture (noun)	suture (noun)
the suture uniting the two parietal bones	thread of catgut or silk or wire used by surgeons to stitch tissues together
	a seam used in surgery
	an immovable joint (especially between the bones of the skull)

sagittal suture (verb)	suture (verb)
	join with a suture