buckthorn family vs family Rhamnaceae

buckthorn family and family Rhamnaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
buckthorn family	Yes	No	No	No
family Rhamnaceae	Yes	No	No	No

As nouns, buckthorn family and family Rhamnaceae are synonyms defined as:

buckthorn family and family Rhamnaceae: trees and shrubs usually thorny bearing drupaceous fruit many having medicinal value

Other synonyms of buckthorn family include Rhamnaceae.

buckthorn family (noun)	family Rhamnaceae (noun)
trees and shrubs usually thorny bearing drupaceous fruit many having medicinal value	trees and shrubs usually thorny bearing drupaceous fruit many having medicinal value