epizootic vs epidemic

epizootic is not a noun while epidemic is a noun.

Word	Noun	Adjective	Verb	Adverb
epizootic	No	Yes	No	No
epidemic	Yes	Yes	No	No

epizootic (noun)	epidemic (noun)
	a widespread outbreak of an infectious disease; many people are infected at the same time

epizootic (adjective)	epidemic (adjective)
(of animals) epidemic among animals of a single kind within a particular region	(especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously