prosody vs poetic rhythm

prosody and poetic rhythm both are nouns.

Word	Noun	Adjective	Verb	Adverb
prosody	Yes	No	No	No
poetic rhythm	Yes	No	No	No

As nouns, prosody and poetic rhythm are synonyms defined as:

Other synonyms of prosody include rhythmic pattern.

prosody (noun)	poetic rhythm (noun)
the study of poetic meter and the art of versification	(prosody) a system of versification
the patterns of stress and intonation in a language
(prosody) a system of versification