body waste vs excretory product

body waste and excretory product both are nouns.

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

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

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

Other synonyms of body waste include excrement, excreta, excretion.

body waste (noun)	excretory product (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