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placenta

 
Noun placenta has 2 senses
  1. placenta - that part of the ovary of a flowering plant where the ovules form
    --1 is a kind of
    reproductive structure
    --1 is a part of ovary
  2. placenta - the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
    --2 is a kind of
    vascular structure
    --2 is a part of uterus, womb
    --2 has parts: caul, veil, embryonic membrane
    --2 has particulars: afterbirth
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