juvenile body vs physical body

juvenile body and physical body both are nouns.

Word	Noun	Adjective	Verb	Adverb
juvenile body	Yes	No	No	No
physical body	Yes	No	No	No

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

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

juvenile body (noun)	physical body (noun)
the body of a young person	alternative names for the body of a human being