vegetate vs biology

vegetate is not a noun while biology is a noun.

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

vegetate (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

vegetate (verb)	biology (verb)
engage in passive relaxation
propagate asexually
grow like a plant
produce vegetation
establish vegetation on
grow or spread abnormally
lead a passive existence without using one's body or mind