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

Implacentalia :: Implacentalia (n. pl.) A primary division of the Mammalia, including the monotremes and marsupials, in which no placenta is formed..
Placenta :: Placenta (n.) The vascular appendage which connects the fetus with the parent, and is cast off in parturition with the afterbirth..
Polycotyledonary :: Polycotyledonary (a.) Having the villi of the placenta collected into definite patches, or cotyledons..
Zonaria :: Zonaria (n. pl.) A division of Mammalia in which the placenta is zonelike.
Placentiform :: Placentiform (a.) Having the shape of a placenta, or circular thickened disk somewhat thinner about the middle..
Placental :: Placental (n.) One of the Placentalia.
Placental :: Placental (a.) Of or pertaining to the placenta; having, or characterized by having, a placenta; as, a placental mammal..
Placentae :: Placentae (pl. ) of Placent.
Placenta :: Placenta (n.) The part of a pistil or fruit to which the ovules or seeds are attached.
Parietal :: Parietal (a.) Attached to the main wall of the ovary, and not to the axis; -- said of a placenta..
Aplacentata :: Aplacentata (n. pl.) Mammals which have no placenta.
Trophosperm :: Trophosperm (n.) The placenta.
Placentas :: Placentas (pl. ) of Placent.
Aplacental :: Aplacental (a.) Belonging to the Aplacentata; without placenta.
Placental :: Placental (a.) Of or pertaining to the Placentalia.
Decidua :: Decidua (n.) The inner layer of the wall of the uterus, which envelops the embryo, forms a part of the placenta, and is discharged with it..
Placentation :: Placentation (n.) The mode of formation of the placenta in different animals; as, the placentation of mammals..
Implacental :: Implacental (n.) A mammal having no placenta.
Spermaphore :: Spermaphore (n.) That part of the ovary from which the ovules arise; the placenta.
Monodelphia :: Monodelphia (n. pl.) The group that includes all ordinary or placental mammals; the Placentalia. See Mammalia.
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