adult body vs material body

adult body and material body both are nouns.

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

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

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

adult body (noun)	material body (noun)
the body of an adult human being	alternative names for the body of a human being