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...

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..

Afterbirth :: Afterbirth (n.) The placenta and membranes with which the fetus is connected, and which come away after delivery..

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

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..

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

Secundine :: Secundine (n.) The afterbirth, or placenta and membranes; -- generally used in the plural..

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

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

Trophosperm :: Trophosperm (n.) The placenta.

Placenta :: Placenta (n.) The part of a pistil or fruit to which the ovules or seeds are attached.

Sporophore :: Sporophore (n.) A 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..

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

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

Cotyledonary :: Cotyledonary (a.) Having a cotyledon; tufted; as, the cotyledonary placenta of the cow..

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

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

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..

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

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

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