katharobic vs biological science

katharobic is not a noun while biological science is a noun.

Word	Noun	Adjective	Verb	Adverb
katharobic	No	Yes	No	No
biological science	Yes	No	No	No

katharobic (noun)	biological science (noun)
	the science that studies living organisms

katharobic (adjective)	biological science (adjective)
of living being in an oxygenated environment lacking organic matter