subfamily Mimosoideae vs family Leguminosae

subfamily Mimosoideae and family Leguminosae both are nouns.

Word	Noun	Adjective	Verb	Adverb
subfamily Mimosoideae	Yes	No	No	No
family Leguminosae	Yes	No	No	No

subfamily Mimosoideae (noun)	family Leguminosae (noun)
alternative name used in some classification systems for the family Mimosaceae	a large family of trees, shrubs, vines, and herbs bearing bean pods; divided for convenience into the subfamilies Caesalpiniaceae, Mimosaceae, Papilionaceae