Casuarinaceae vs dicot family

Casuarinaceae and dicot family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Casuarinaceae	Yes	No	No	No
dicot family	Yes	No	No	No

As nouns, dicot family is a hypernym of Casuarinaceae; that is, dicot family is a word with a broader meaning than Casuarinaceae:

Casuarinaceae: one genus: genus Casuarina
dicot family: family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Casuarinaceae include magnoliopsid family.

Casuarinaceae (noun)	dicot family (noun)
one genus: genus Casuarina	family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination