superciliary arch vs supraorbital ridge

superciliary arch and supraorbital ridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
superciliary arch	Yes	No	No	No
supraorbital ridge	Yes	No	No	No

As nouns, superciliary arch and supraorbital ridge are synonyms defined as:

superciliary arch and supraorbital ridge: a ridge on the frontal bone above the eye socket

Other synonyms of superciliary arch include superciliary ridge, supraorbital torus.

superciliary arch (noun)	supraorbital ridge (noun)
a ridge on the frontal bone above the eye socket	a ridge on the frontal bone above the eye socket