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Definition of Placenta in English :

Define Placenta in English

Placenta meaning in English

Meaning of Placenta in English

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Placenta pronunciation in English

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Placenta

see synonyms of placenta

Noun

1. placenta

that part of the ovary of a flowering plant where the ovules form

2. placenta

the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus

WordNet Lexical Database for English. Princeton University. 2010.

Placenta

see synonyms of placenta
noun plural -tas or -tae (-tiː)
1. 
the vascular organ formed in the uterus during pregnancy, consisting of both maternal and embryonic tissues and providing oxygen and nutrients for the fetus and transfer of waste products from the fetal to the maternal blood circulation
See also afterbirth
2. 
the corresponding organ or part in certain mammals
3. botany
a. 
the part of the ovary of flowering plants to which the ovules are attached
b. 
the mass of tissue in nonflowering plants that bears the sporangia or spores

Collins English Dictionary. Copyright © HarperCollins Publishers

Placenta

see synonyms of placenta
nounWord forms: plural plaˈcentas or plaˈcentae (pləˈsɛnti ; pləsenˈtē)
1.  Anatomy and Zoology
a. 
a vascular organ, developed within the uterus of most mammals during gestation from the chorion of the embryo and a part of the maternal uterine wall, that is connected to the embryo by the umbilical cord and that is discharged shortly after birth: it serves as the structure through which nourishment for the fetus is received from, and wastes of the fetus are eliminated into, the circulatory system of the mother
b. 
any similar structure in other animals
2.  Botany
a. 
that part of the lining of the ovary which bears the ovules
b. 
any mass of tissue that bears sporangia or spores

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Placenta

see synonyms of placenta
n. pl. pla·cen·tas or pla·cen·tae (-tē)
1.
a. A membranous vascular organ that develops in female eutherian 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.
b. A similar organ in marsupial mammals, consisting of a yolk sac attached to the uterine wall.
c. An organ with similar functions in some nonmammalian animals, such as certain sharks and reptiles.
2. Botany The part within the ovary of a flowering plant to which the ovules are attached.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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