metamorphous vs biological science

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

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

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

metamorphous (adjective)	biological science (adjective)
of or relating to metamorphosis (especially of rocks)
produced by metamorphosis