cheekbone vs zygomatic bone

cheekbone and zygomatic bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheekbone	Yes	No	No	No
zygomatic bone	Yes	No	No	No

As nouns, cheekbone and zygomatic bone are synonyms defined as:

cheekbone and zygomatic bone: the arch of bone beneath the eye that forms the prominence of the cheek

Other synonyms of cheekbone include jugal bone, malar, malar bone, os zygomaticum, zygomatic.

cheekbone (noun)	zygomatic bone (noun)
the arch of bone beneath the eye that forms the prominence of the cheek	the arch of bone beneath the eye that forms the prominence of the cheek