dejection vs excretory product

dejection and excretory product both are nouns.

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

As nouns, excretory product is a hypernym of dejection; that is, excretory product is a word with a broader meaning than dejection:

dejection: solid excretory product evacuated from the bowels
excretory product: waste matter (as urine or sweat but especially feces) discharged from the body

Other hypernyms of dejection include body waste, excrement, excreta, excretion.

dejection (noun)	excretory product (noun)
a state of melancholy depression	waste matter (as urine or sweat but especially feces) discharged from the body
solid excretory product evacuated from the bowels