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...

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..

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

Sporophore :: Sporophore (n.) A placenta.

Placentation :: Placentation (n.) The mode of formation of the placenta in different animals; as, the placentation of mammals..

Acetabulum :: Acetabulum (n.) One of the lobes of the placenta in ruminating animals.

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..

Trophosperm :: Trophosperm (n.) The placenta.

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

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

Placentae :: Placentae (pl. ) of Placent.

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

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

Aplacental :: Aplacental (a.) Belonging to the Aplacentata; without placenta.

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..

Placentas :: Placentas (pl. ) of Placent.

Metadiscoidal :: Metadiscoidal (a.) Discoidal by derivation; -- applied especially to the placenta of man and apes, because it is supposed to have been derived from a diffused placenta..

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

Polycotyledonary :: Polycotyledonary (a.) Having the villi of the placenta collected into definite patches, or cotyledons..

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

Placentary :: Placentary (a.) Having reference to the placenta; as, the placentary system of classification..

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