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..

Lern More About Placenta

Placentiferous :: Placentiferous (a.) Having or producing a placenta.
Trophosperm :: Trophosperm (n.) The placenta.
Aplacental :: Aplacental (a.) Belonging to the Aplacentata; without placenta.
Placental :: Placental (a.) Of or pertaining to 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..
Implacental :: Implacental (a.) Without a placenta, as marsupials and monotremes..
Implacental :: Implacental (n.) A mammal having no placenta.
Placentiform :: Placentiform (a.) Having the shape of a placenta, or circular thickened disk somewhat thinner about the middle..
Funicle :: Funicle (n.) The little stalk that attaches a seed to the placenta.
Acetabulum :: Acetabulum (n.) One of the lobes of the placenta in ruminating animals.
Placental :: Placental (n.) One of the Placentalia.
Zonaria :: Zonaria (n. pl.) A division of Mammalia in which the placenta is zonelike.
Implacentalia :: Implacentalia (n. pl.) A primary division of the Mammalia, including the monotremes and marsupials, in which no placenta is formed..
Cotyledon :: Cotyledon (n.) One of the patches of villi found in some forms of placenta.
Parietal :: Parietal (a.) Attached to the main wall of the ovary, and not to the axis; -- said of a placenta..
Marsupialia :: Marsupialia (n. pl.) A subclass of Mammalia, including nearly all the mammals of Australia and the adjacent islands, together with the opossums of America. They differ from ordinary mammals in having the corpus callosum very small, in being implacental, and in having their young born while very immature. The female generally carries the young for some time after birth in an external pouch, or marsupium. Called also Marsupiata..
Placenta :: Placenta (n.) The part of a pistil or fruit to which the ovules or seeds are attached.
Placentas :: Placentas (pl. ) of Placent.
Lissencephala :: Lissencephala (n. pl.) A general name for all those placental mammals that have a brain with few or no cerebral convolutions, as Rodentia, Insectivora, etc..
Afterbirth :: Afterbirth (n.) The placenta and membranes with which the fetus is connected, and which come away after delivery..
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