proboscis worm vs nemertine

proboscis worm and nemertine both are nouns.

Word	Noun	Adjective	Verb	Adverb
proboscis worm	Yes	No	No	No
nemertine	Yes	No	No	No

As nouns, proboscis worm and nemertine are synonyms defined as:

proboscis worm and nemertine: soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract

Other synonyms of proboscis worm include nemertean, ribbon worm.

proboscis worm (noun)	nemertine (noun)
soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract	soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract