excretory product vs body waste

excretory product and body waste both are nouns.

Word	Noun	Adjective	Verb	Adverb
excretory product	Yes	No	No	No
body waste	Yes	No	No	No

As nouns, excretory product and body waste are synonyms defined as:

excretory product and body waste: waste matter (as urine or sweat but especially feces) discharged from the body

Other synonyms of excretory product include excrement, excreta, excretion.

excretory product (noun)	body waste (noun)
waste matter (as urine or sweat but especially feces) discharged from the body	waste matter (as urine or sweat but especially feces) discharged from the body