Gadidae vs family Gadidae

Gadidae and family Gadidae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gadidae	Yes	No	No	No
family Gadidae	Yes	No	No	No

As nouns, Gadidae and family Gadidae are synonyms defined as:

Gadidae and family Gadidae: large family of important mostly marine food fishes

Gadidae (noun)	family Gadidae (noun)
large family of important mostly marine food fishes	large family of important mostly marine food fishes