family Sciaenidae vs order Percomorphi

family Sciaenidae and order Percomorphi both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Sciaenidae	Yes	No	No	No
order Percomorphi	Yes	No	No	No

family Sciaenidae (noun)	order Percomorphi (noun)
warm-water marine fishes including the drums and grunts and croakers and sea trout	one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna