excrement vs excretory product

excrement and excretory product both are nouns.

Word	Noun	Adjective	Verb	Adverb
excrement	Yes	No	No	No
excretory product	Yes	No	No	No

As nouns, excrement and excretory product are synonyms defined as:

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

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

excrement (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