Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of placenta is as below...

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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