colubrid snake vs colubrid

colubrid snake and colubrid both are nouns.

Word	Noun	Adjective	Verb	Adverb
colubrid snake	Yes	No	No	No
colubrid	Yes	No	No	No

As nouns, colubrid snake and colubrid are synonyms defined as:

colubrid snake and colubrid: mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes

colubrid snake (noun)	colubrid (noun)
mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes	mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes