Noun chaetognatha has 1 sense
  1. Chaetognatha, phylum Chaetognatha - arrowworms: a group of small active transparent marine worms
    --1 is a kind of phylum
    --1 is a member of Animalia, kingdom Animalia, animal kingdom
    --1 has members: arrowworm, chaetognath; genus Sagitta; genus Spadella
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