pogonophoran vs beard worm

pogonophoran and beard worm both are nouns.

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

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

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

pogonophoran (noun)	beard worm (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