Pogonophora

plural noun
Po·​go·​noph·​o·​ra | \ˌpōgəˈnäfərə\

Definition of Pogonophora 

: a phylum or class of marine worms of uncertain systematic relationships that superficially resemble polychaetes but have a dorsal nervous system and obscure metamerism

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History and Etymology for Pogonophora

New Latin, irregular from Greek pōgōnophora, neuter plural of pōgōnophoros wearing a beard, from pōgōno- pogon- + -phoros -phorous

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