polychete worm vs polychaete

polychete worm and polychaete both are nouns.

Word	Noun	Adjective	Verb	Adverb
polychete worm	Yes	No	No	No
polychaete	Yes	No	No	No

As nouns, polychete worm and polychaete are synonyms defined as:

polychete worm and polychaete: chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles

Other synonyms of polychete worm include polychaete worm, polychete.

polychete worm (noun)	polychaete (noun)
chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles	chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles