PLACENTA (placentae)

Pronunciation (US):

(GB):

IPA (US):

Irregular inflected form: placentae   

 Dictionary entry overview: What does placenta mean? 

• PLACENTA (noun)
  The noun PLACENTA has 2 senses:

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

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

  Familiarity information: PLACENTA used as a noun is rare.

 Dictionary entry details 

• PLACENTA (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting plants

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)

Sense 2

Meaning:

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

Classified under:

Nouns denoting body parts

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)

 Context examples 

These cells also form part of the placenta (the organ that passes nutrients from the mother to the fetus).

(Gestational trophoblastic disease, NCI Dictionary)

This protein may play a role in the function of the placenta.

(G Antigen Family D Member 4, NCI Thesaurus)

This protein is expressed at moderate levels in heart, brain, placenta, skeletal muscle, and pancreas, and at lower levels in lung, liver, and kidney.

(Glioma Tumor Suppressor Candidate Region Gene 1 Protein, NCI Thesaurus)

A slow-growing tumor that develops from trophoblastic cells (cells that help an embryo attach to the uterus and help form the placenta) after fertilization of an egg by a sperm.

(Hydatidiform mole, NCI Dictionary)

A malignant neoplasm that has spread to the placenta from another anatomic site.

(Metastatic Malignant Neoplasm to the Placenta, NCI Thesaurus)

Expressed in heart, lung, skeletal muscle, kidney, pancreas, brain, liver, and placenta by human PDAP2 Gene (FUS1 Family), FUS-1 Protein may cause G1 arrest and induce apoptosis.

(FUS-1 Protein, NCI Thesaurus)

It may also be involved in development of the placenta.

(Colony Stimulating Factor 1, NCI Thesaurus/LocusLink)

CT7 and MAGE-A3 are tumor-specific proteins overexpressed in a number of cancers but not in healthy tissues other than testis and placenta.

(Autologous CT7/MAGE-A3/WT1 mRNA-Electroporated Langerhans-Type Dendritic Cells, NCI Thesaurus)

A humanized IgG1 monoclonal antibody directed against the placenta growth factor (PGF), with potential anti-angiogenic and antineoplastic activities.

(Anti-PGF Monoclonal Antibody RO5323441, NCI Thesaurus)

A non-metastasizing neoplasm that arises from the placenta.

(Benign Placental Neoplasm, NCI Thesaurus)