English definition of Placenta

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Definition of placenta

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Placenta (n.) The vascular appendage which connects the fetus with the parent, and is cast off in parturition with the afterbirth..

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Implacental :: Implacental (n.) A mammal having no placenta.

Placental :: Placental (n.) One of the Placentalia.

Ovule :: Ovule (n.) The rudiment of a seed. It grows from a placenta, and consists of a soft nucleus within two delicate coatings. The attached base of the ovule is the hilum, the coatings are united with the nucleus at the chalaza, and their minute orifice is the foramen..

Zonaria :: Zonaria (n. pl.) A division of Mammalia in which the placenta is zonelike.

Placentation :: Placentation (n.) The mode in which the placenta is arranged or composed; as, axile placentation; parietal placentation..

Sporophore :: Sporophore (n.) A placenta.

Monodelphia :: Monodelphia (n. pl.) The group that includes all ordinary or placental mammals; the Placentalia. See Mammalia.

Placentas :: Placentas (pl. ) of Placent.

Placentiferous :: Placentiferous (a.) Having or producing a placenta.

Aplacentata :: Aplacentata (n. pl.) Mammals which have no placenta.

Secundine :: Secundine (n.) The afterbirth, or placenta and membranes; -- generally used in the plural..

Afterbirth :: Afterbirth (n.) The placenta and membranes with which the fetus is connected, and which come away after delivery..

Implacentalia :: Implacentalia (n. pl.) A primary division of the Mammalia, including the monotremes and marsupials, in which no placenta is formed..

Cotyledonary :: Cotyledonary (a.) Having a cotyledon; tufted; as, the cotyledonary placenta of the cow..

Cotyledon :: Cotyledon (n.) One of the patches of villi found in some forms of placenta.

Placental :: Placental (a.) Of or pertaining to the placenta; having, or characterized by having, a placenta; as, a placental mammal..

Placental :: Placental (a.) Of or pertaining to the Placentalia.

Implacental :: Implacental (a.) Without a placenta, as marsupials and monotremes..

Funicle :: Funicle (n.) The little stalk that attaches a seed to the placenta.

Parietal :: Parietal (a.) Attached to the main wall of the ovary, and not to the axis; -- said of a placenta..