expelling vs body process

expelling and body process both are nouns.

Word	Noun	Adjective	Verb	Adverb
expelling	Yes	No	No	No
body process	Yes	No	No	No

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

expelling: any of several bodily processes by which substances go out of the body
body process: an organic process that takes place in the body

Other hypernyms of expelling include activity, bodily function, bodily process.

expelling (noun)	body process (noun)
any of several bodily processes by which substances go out of the body	an organic process that takes place in the body