Noun polychaeta has 1 sense
  1. Polychaeta, class Polychaeta - marine annelid worms
    --1 is a kind of class
    --1 is a member of Annelida, phylum Annelida
    --1 has members:
     polychaete, polychete, polychaete worm, polychete worm; lugworm, lug, lobworm; Terebellidae, family Terebellidae
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