Najadaceae vs family Najadaceae

Najadaceae and family Najadaceae both are nouns.

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

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

Najadaceae and family Najadaceae: monotypic family of aquatic plants having narrow leaves and small flowers

Other synonyms of Najadaceae include family Naiadaceae, naiad family, Naiadaceae.

Najadaceae (noun)	family Najadaceae (noun)
monotypic family of aquatic plants having narrow leaves and small flowers	monotypic family of aquatic plants having narrow leaves and small flowers