urine vs body waste

urine and body waste both are nouns.

Word	Noun	Adjective	Verb	Adverb
urine	Yes	No	No	No
body waste	Yes	No	No	No

As nouns, body waste is a hypernym of urine; that is, body waste is a word with a broader meaning than urine:

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

Other hypernyms of urine include excrement, excreta, excretion, excretory product.

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