adult body vs anatomy

adult body and anatomy both are nouns.

Word	Noun	Adjective	Verb	Adverb
adult body	Yes	No	No	No
anatomy	Yes	No	No	No

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

Other hypernyms of adult body include bod, build, chassis, figure, flesh, form, frame, human body, material body, physical body, physique, shape, soma.

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