bodily fluid vs liquid body substance

bodily fluid and liquid body substance both are nouns.

Word	Noun	Adjective	Verb	Adverb
bodily fluid	Yes	No	No	No
liquid body substance	Yes	No	No	No

As nouns, bodily fluid and liquid body substance are synonyms defined as:

Other synonyms of bodily fluid include body fluid, humor, humour.

bodily fluid (noun)	liquid body substance (noun)
the liquid parts of the body	the liquid parts of the body