placenta

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“
She also had a condition called placenta previa - where the placenta is attached to the bottom of the uterus and covers part or all of the cervix and can cause severe bleeding.

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Definitions (33)

Toggle American Heritage definitions American Heritage Dictionary (3)

  1. noun A membranous vascular organ that develops in female mammals during pregnancy, lining the uterine wall and partially enveloping the fetus, to which it is attached by the umbilical cord. Following birth, the placenta is expelled.
  2. noun An organ with similar functions in some nonmammalian animals, such as certain sharks and reptiles.
  3. noun Botany The part within the ovary of a flowering plant to which the ovules are attached.

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Examples (50)

  • Dr. Serikov said, that the fact the human term placenta is a hematopoietic organ was reported by our team for the first time more then a year ago, and this year this finding was confirmed by UCSF scientists headed by Dr. S. Fisher. —  EurekAlert! - Breaking News
  • In summary, said Dr. F. Kuypers, our results indicate for the first time that human term placenta is a high capacity source of live and functional hematopoietic stem cells. —  EurekAlert! - Breaking News
  • She also had a condition called placenta previa - where the placenta is attached to the bottom of the uterus and covers part or all of the cervix and can cause severe bleeding. —  Wrong Planet Asperger / Autism Forums
  • Deer placenta is also said to be chemically close to human placenta, and is now considered, according to this hawker, the —  Chinalyst - China blogs in English
  • They come into relation in the double organ called the placenta, and it has been exhaustively proved that this organ is so constituted as in large measure to protect the child from injurious influences acting upon and in the mother. —  Woman and Womanhood A Search for Principles
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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. New Latin, from Latin, flat cake, alteration of Greek plakoenta, from accusative of plakoeis, flat, from plax, plak-, flat land, surface; see plāk-1 in Indo-European roots.

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  1. = F. Spanish Portuguese Italian placenta, from New Latin placenta, placenta (something having a flattened circular form), literally ‘cake,’a particular use of Latin placenta, a cake: see placent.
 

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/pləˈsɛntə/
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