filaria vs filarial

filaria is a noun but filarial is not a noun.

Word	Noun	Adjective	Verb	Adverb
filaria	Yes	No	No	No
filarial	No	Yes	No	No

filaria (noun)	filarial (noun)
slender threadlike roundworms living in the blood and tissues of vertebrates; transmitted as larvae by biting insects
European weed naturalized in southwestern United States and Mexico having reddish decumbent stems with small fernlike leaves and small deep reddish-lavender flowers followed by slender fruits that stick straight up; often grown for forage

filaria (adjective)	filarial (adjective)
	related to or infested with or transmitting parasitic worms especially filaria