English definition of Placenta

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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..

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

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

Placentiform :: Placentiform (a.) Having the shape of a placenta, or circular thickened disk somewhat thinner about the middle..

Placental :: Placental (a.) Of or pertaining to the placenta; having, or characterized by having, a placenta; as, a placental mammal..

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..

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

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..

Placentae :: Placentae (pl. ) of Placent.

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

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

Funicle :: Funicle (n.) The little stalk that attaches a seed to the placenta.

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

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

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

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

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

Placentas :: Placentas (pl. ) of Placent.

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

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