polymorphous vs biology

polymorphous is not a noun while biology is a noun.

Word	Noun	Adjective	Verb	Adverb
polymorphous	No	Yes	No	No
biology	Yes	No	No	No

polymorphous (noun)	biology (noun)
	the science that studies living organisms
	all the plant and animal life of a particular region
	characteristic life processes and phenomena of living organisms

polymorphous (adjective)	biology (adjective)
relating to the occurrence of more than one kind of individual (independent of sexual differences) in an interbreeding population
relating to the crystallization of a compound in two or more different forms
having or occurring in several distinct forms