anatomy vs mesial

anatomy is a noun but mesial is not a noun.

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

anatomy (noun)	mesial (noun)
a detailed analysis
alternative names for the body of a human being
the branch of morphology that deals with the structure of animals

anatomy (adjective)	mesial (adjective)
	being in or directed toward the midline or mesial plane of the body