sutura frontalis vs frontal suture

sutura frontalis and frontal suture both are nouns.

Word	Noun	Adjective	Verb	Adverb
sutura frontalis	Yes	No	No	No
frontal suture	Yes	No	No	No

As nouns, sutura frontalis and frontal suture are synonyms defined as:

sutura frontalis and frontal suture: the suture between two halves of the frontal bone (usually obliterated by the age of 6)

sutura frontalis (noun)	frontal suture (noun)
the suture between two halves of the frontal bone (usually obliterated by the age of 6)	the suture between two halves of the frontal bone (usually obliterated by the age of 6)