noun, plural pla·cen·tas, pla·cen·tae [pluh-sen-tee] /pləˈsɛn ti/.
- the part of the ovary of flowering plants that bears the ovules.
- (in ferns and related plants) the tissue giving rise to sporangia.
Origin of placenta
Examples from the Web for placenta
Contemporary Examples of placenta
Nothing much to use in cleaning up the baby and his mother after the birth, no place to dispose of the placenta.Jesus Wasn’t Born Rich. Think About It.
December 25, 2014
Usually, the disease resolves with the birth of the baby and placenta.Beyond ‘Downton Abbey’: Preeclampsia Maternal Deaths Continue Today
Eleni Tsigas, Christine Morton
January 28, 2013
It normally occurs during weeks six and eight of pregnancy, when the placenta takes over production of hormones from the ovaries.What Exactly Is Wrong With Kate (And Is She Vomiting Blood?) Experts Rush To Explain...
December 3, 2012
You get the biting of the placenta and you get Renesmee biting her without necessarily seeing it.Bill Condon and Melissa Rosenberg on 'Twilight Saga: Breaking Dawn'
November 21, 2011
I had to tell her she had a condition with her placenta that made abortion risky.The Abortion Ban Is Bad Medicine
Willie J. Parker
November 16, 2009
Historical Examples of placenta
So the allantois of the reptile has become the placenta of the mammal.The Meaning of Evolution
Samuel Christian Schmucker
Proper means should be taken to hasten the expulsion of the placenta.Cattle and Their Diseases
It is in fact the placenta, and is also associated with the functions of the Great Mother.
The placenta (and also the child) was considered to be formed of menstrual blood.
The size and character of the placenta are important qualities.Tomato Culture: A Practical Treatise on the Tomato
William Warner Tracy
noun plural -tas or -tae (-tiː)
- the part of the ovary of flowering plants to which the ovules are attached
- the mass of tissue in nonflowering plants that bears the sporangia or spores
Word Origin for placenta
1670s of plants, 1690s of mammals, from Modern Latin placenta uterina "uterine cake" (so called 16c. by Italian anatomist Realdo Colombo), from Latin placenta "a cake, flat cake," from Greek plakoenta, accusative of plakoeis "flat," related to plax (genitive plakos) "level surface, anything flat," from PIE *plak- (1) "to be flat" (cf. Greek plakoeis "flat," Lettish plakt "to become flat," Old Norse flaga "layer of earth," Norwegian flag "open sea," Old English floh "piece of stone, fragment," Old High German fluoh "cliff"), extended form of root *pele- (2) "flat, to spread" (see plane (n.1)). So called from the shape.
n. pl. pla•cen•tas
An organ that forms in the uterus after the implantation of a zygote. The placenta moves nourishment from the mother's blood to the embryo or fetus; it also sends the embryo or fetus's waste products into the mother's blood to be disposed of by the mother's excretory system. The embryo or fetus is attached to the placenta by the umbilical cord. After birth, the placenta separates from the uterus and is pushed out of the mother's body.