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...

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

Placentas :: Placentas (pl. ) of Placent.

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

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

Trophosperm :: Trophosperm (n.) The placenta.

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..

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..

Placentalia :: Placentalia (n. pl.) A division of Mammalia including those that have a placenta, or all the orders above the marsupials..

Spermaphore :: Spermaphore (n.) That part of the ovary from which the ovules arise; the placenta.

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

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

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

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

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

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

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.

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

Sporophore :: Sporophore (n.) A placenta.

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