biology vs vegetate

biology is a noun but vegetate is not a noun.

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

biology (noun)	vegetate (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

biology (verb)	vegetate (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