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Meaning of PLACENTA

Pronunciation:  plu'sentu

WordNet Dictionary
  1. [n]  the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
  2. [n]  that part of the ovary of a flowering plant where the ovules form

PLACENTA is a 8 letter word that starts with P.


 See Also: afterbirth, caul, embryonic membrane, ovary, reproductive structure, uterus, vascular structure, veil, womb



Webster's 1913 Dictionary
\Pla*cen"ta\, n.; pl. L. {Placent[ae]}, E. {Placentas}.
[L., a cake, Gr. ? a flat cake, from ? flat, fr. ?, ?,
anything flat and broad.]
1. (Anat.) The vascular appendage which connects the fetus
   with the parent, and is cast off in parturition with the

Note: In most mammals the placenta is principally developed
      from the allantois and chorion, and tufts of vascular
      villi on its surface penetrate the blood vessels of the
      parental uterus, and thus establish a nutritive and
      excretory connection between the blood of the fetus and
      that of the parent, though the blood itself does not
      flow from one to the other.

2. (Bot.) The part of a pistil or fruit to which the ovules
   or seeds are attached.

Medical Dictionary
 Definition: organ that develops in the uterus during pregnancy; links the blood supplies of a pregnant woman to the fetus to provide nutrients and remove waste products.
Dream Dictionary
 Definition: Seeing a placenta in your dream, suggests that there is something in your life that is no longer needed. You need to let go of some of the unnecessary burden.
Biology Dictionary
  1. A structure formed on the wall of the uterus during pregnancy which serves to exchange oxygen, wastes and nutrients between the mother's blood and the embryo/fetus' blood; the placenta is expelled as afterbirth.
  2. In plants: a region, within an ovary, to which ovules are attached.
 Definition: an organ that develops from fetal membranes and functions to pass oxygen, nutrients, and other substances to and waste material from the fetus.