worm snake vs colubrid

worm snake and colubrid both are nouns.

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

As nouns, colubrid is a hypernym of worm snake; that is, colubrid is a word with a broader meaning than worm snake:

worm snake: small reddish wormlike snake of eastern United States
colubrid: mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes

Other hypernyms of worm snake include colubrid snake.

worm snake (noun)	colubrid (noun)
wormlike burrowing snake of warm regions having vestigial eyes	mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes
small reddish wormlike snake of eastern United States