beard worm vs pogonophoran

beard worm and pogonophoran both are nouns.

Word	Noun	Adjective	Verb	Adverb
beard worm	Yes	No	No	No
pogonophoran	Yes	No	No	No

As nouns, beard worm and pogonophoran are synonyms defined as:

beard worm and pogonophoran: slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom

beard worm (noun)	pogonophoran (noun)
slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom	slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom