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PLACENTA
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Irregular inflected form: placentae
I. (noun)
Sense 1
Meaning:
The vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
Classified under:
Hypernyms ("placenta" is a kind of...):
vascular structure (a structure composed of or provided with blood vessels)
Meronyms (parts of "placenta"):
caul; embryonic membrane; veil (the inner membrane of embryos in higher vertebrates (especially when covering the head at birth))
Hyponyms (each of the following is a kind of "placenta"):
afterbirth (the placenta and fetal membranes that are expelled from the uterus after the baby is born)
Holonyms ("placenta" is a part of...):
uterus; womb (a hollow muscular organ in the pelvic cavity of females; contains the developing fetus)
Derivation:
placental (pertaining to or having or occurring by means of a placenta)
Sense 2
Meaning:
That part of the ovary of a flowering plant where the ovules form
Classified under:
Hypernyms ("placenta" is a kind of...):
reproductive structure (the parts of a plant involved in its reproduction)
Holonyms ("placenta" is a part of...):
ovary (the organ that bears the ovules of a flower)
Derivation:
placental (pertaining to or having or occurring by means of a placenta)
Context examples:
They include health problems in the mother, genetic factors, problems with the placenta and substance abuse by the mother.
(Birth Weight, Centers for Disease Control and Prevention)
Strong expression of the receptor for chemokines XCL1 (SCYC1) and XCL2 (SCYC2) occurs in placenta, spleen, and thymus.
(Chemokine (C Motif) Receptor 1, NCI Thesaurus)
A category of non-neoplastic trophoblastic disorders that affect the placenta.
(Non-Neoplastic, Non-Molar Trophoblastic Disorder, NCI Thesaurus)
PEA3 is widely expressed (though not in normal lymphocytes) and is especially high in brain and placenta.
(PEA3, NCI Thesaurus)
A benign or malignant neoplasm that affects the placenta.
(Placental Neoplasm, NCI Thesaurus)
A non-neoplastic abnormality that affects the placenta.
(Placental Malformation, NCI Thesaurus)
A non-neoplastic disorder that arises from the placenta.
(Placental Non-Neoplastic Disorder, NCI Thesaurus)
A polyp in the uterine cavity that is formed by placenta remnants.
(Placental Polyp, NCI Thesaurus)
The formation of the placenta in the uterus.
(Placentation, NCI Thesaurus)
Interruption of the blood supply to a portion of the placenta, resulting in ischemic necrosis.
(Placental Infarction, NCI Thesaurus)
