polychete vs polychaete

polychete and polychaete both are nouns.

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

As nouns, polychete and polychaete are synonyms defined as:

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

Other synonyms of polychete include polychaete worm, polychete worm.

polychete (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