abaxial vs biological science

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

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

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

abaxial (adjective)	biological science (adjective)
facing away from the axis of an organ or organism