constrictor vs serpent

constrictor and serpent both are nouns.

Word	Noun	Adjective	Verb	Adverb
constrictor	Yes	No	No	No
serpent	Yes	No	No	No

As nouns, serpent is a hypernym of constrictor; that is, serpent is a word with a broader meaning than constrictor:

constrictor: any of various large nonvenomous snakes that kill their prey by crushing it in its coils
serpent: limbless scaly elongate reptile; some are venomous

Other hypernyms of constrictor include ophidian, snake.

constrictor (noun)	serpent (noun)
any of various large nonvenomous snakes that kill their prey by crushing it in its coils	limbless scaly elongate reptile; some are venomous
	an obsolete bass cornet; resembles a snake
	a firework that moves in serpentine manner when ignited