malar bone vs cheekbone

malar bone and cheekbone both are nouns.

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

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

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

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

malar bone (noun)	cheekbone (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