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The Collaborative International Dictionary
Placental

Placental \Pla*cen"tal\, a.

  1. Of or pertaining to the placenta; having, or characterized by having, a placenta; as, a placental mammal.

  2. (Zo["o]l.) Of or pertaining to the Placentalia.

Placental

Placental \Pla*cen"tal\, n. (Zo["o]l.) One of the Placentalia.

Douglas Harper's Etymology Dictionary
placental

1808, from Modern Latin placentalis, from placenta (see placenta).

Wiktionary
placental

a. 1 Of or pertaining to the placenta, or to the Placentalia 2 Having a placenta n. Any animal that is a member of the Placentalia

WordNet
placental

adj. of or having or occurring by means of a placenta; "all mammals except monotremes and marsupials are placental mammals" [ant: aplacental]

placental

n. mammals having a placenta; all mammals except monotremes and marsupials [syn: placental mammal, eutherian, eutherian mammal]

Wikipedia

Usage examples of "placental".

He stirred his limbs in the thick, gold liquid, found that he had less mobility than an embryo, that his fingers had turned to fins, that his muscles had atrophied to weak rags, and that this pain was the true medium and placental fluid of the universe.

Both of them neutralize the placental toxin that causes the eclampsia of pregnancy.

I had these placental abruptions because of the autoimmune condition that made me so violently nauseated.

The decarbonation of the blood requires the placental and uterine membranes to be in contact with each other.

If any of my readers hunger and thirst for information concerning the descent of the cat through marsupial ancestors and mesozoic mammals to the generalized placental or monodelphous carnivora of to-day, let them consult St.

Here we have a Superorder of different species, which have many species similar to placental animals.

There was a pair of deltatheridiums, ratlike omnivores, neither marsupial nor placental, a unique line that would not outlive the dinosaurs.

Knowledge of quantum mechanics does not help one understand why introduced placental predators have exterminated so many Australian marsupial species, or why the Allied Powers rather than the Central Powers won World War I.

A placental transfer was vastly more demanding than a straightforward cesarian section.

Looks like a lizard, and it's only four inches long, but it's a real warm-blooded, gamogenetic, placental, viviparous mammal.

They called it a placental abruption, made worse from the stress of the job.

The umbilical vein itself had been severed of its placental crown and returned to the circulatory system by a means that was beyond the scope of this dissection to establish.