osteology vs anatomy

osteology and anatomy both are nouns.

Word	Noun	Adjective	Verb	Adverb
osteology	Yes	No	No	No
anatomy	Yes	No	No	No

As nouns, anatomy is a hypernym of osteology; that is, anatomy is a word with a broader meaning than osteology:

osteology: the branch of anatomy that studies the bones of the vertebrate skeleton
anatomy: the branch of morphology that deals with the structure of animals

Other hypernyms of osteology include general anatomy.

osteology (noun)	anatomy (noun)
the branch of anatomy that studies the bones of the vertebrate skeleton	a detailed analysis
	alternative names for the body of a human being
	the branch of morphology that deals with the structure of animals