Fabaceae vs Leguminosae

Fabaceae and Leguminosae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fabaceae	Yes	No	No	No
Leguminosae	Yes	No	No	No

As nouns, Fabaceae and Leguminosae are synonyms defined as:

Fabaceae and Leguminosae: a large family of trees, shrubs, vines, and herbs bearing bean pods; divided for convenience into the subfamilies Caesalpiniaceae, Mimosaceae, Papilionaceae

Other synonyms of Fabaceae include family Fabaceae, family Leguminosae, legume family, pea family.

Fabaceae (noun)	Leguminosae (noun)
a large family of trees, shrubs, vines, and herbs bearing bean pods; divided for convenience into the subfamilies Caesalpiniaceae, Mimosaceae, Papilionaceae	a large family of trees, shrubs, vines, and herbs bearing bean pods; divided for convenience into the subfamilies Caesalpiniaceae, Mimosaceae, Papilionaceae