body waste vs wormcast

body waste and wormcast both are nouns.

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

As nouns, wormcast is a hyponym of body waste; that is, wormcast is a word with a more specific, narrower meaning than body waste:

body waste: waste matter (as urine or sweat but especially feces) discharged from the body
wormcast: cylindrical mass of earth voided by a burrowing earthworm or lugworm

body waste (noun)	wormcast (noun)
waste matter (as urine or sweat but especially feces) discharged from the body	fossil trail of a worm
	cylindrical mass of earth voided by a burrowing earthworm or lugworm