Anatidae vs family Anatidae

Anatidae and family Anatidae both are nouns.

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

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

Anatidae and family Anatidae: swimming birds having heavy short-legged bodies and bills with a horny tip: swans, geese, ducks

Anatidae (noun)	family Anatidae (noun)
swimming birds having heavy short-legged bodies and bills with a horny tip: swans, geese, ducks	swimming birds having heavy short-legged bodies and bills with a horny tip: swans, geese, ducks