Najadaceae vs naiad family

Najadaceae and naiad family both are nouns.

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

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

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

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

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