perspiration vs bodily function

perspiration and bodily function both are nouns.

Word	Noun	Adjective	Verb	Adverb
perspiration	Yes	No	No	No
bodily function	Yes	No	No	No

As nouns, bodily function is a hypernym of perspiration; that is, bodily function is a word with a broader meaning than perspiration:

perspiration: the process of the sweat glands of the skin secreting a salty fluid
bodily function: an organic process that takes place in the body

Other hypernyms of perspiration include activity, bodily process, body process.

perspiration (noun)	bodily function (noun)
salty fluid secreted by sweat glands	an organic process that takes place in the body
the process of the sweat glands of the skin secreting a salty fluid