pendulous vs biology

pendulous is not a noun while biology is a noun.

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

pendulous (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

pendulous (adjective)	biology (adjective)
having branches or flower heads that bend downward