Noun poriferan has 1 sense
  1. sponge, poriferan, parazoan - primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies
    --1 is a kind of invertebrate
    --1 is a member of Porifera, phylum Porifera
    --1 has particulars: glass sponge
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