colubrid vs family Colubridae

colubrid and family Colubridae both are nouns.

Word	Noun	Adjective	Verb	Adverb
colubrid	Yes	No	No	No
family Colubridae	Yes	No	No	No

colubrid (noun)	family Colubridae (noun)
mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes	nonvenomous snakes; about two-thirds of all living species