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Relating to a hundred. Cental system, the method of buying and selling by the cental, or hundredweight.

Belonging to the Aplacentata; without placenta.

Without a placenta, as marsupials and monotremes. -- n.

A primary division of the Mammalia, including the monotremes and marsupials, in which no placenta is formed.

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

A division of Mammalia including those that have a placenta, or all the orders above the marsupials.

A general name for all those placental mammals that have a brain with few or no cerebral convolutions, as Rodentia, Insectivora, etc.

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.

The group that includes all ordinary or placental mammals; the Placentalia. See Mammalia.

Having many, or several, centers; as, a multicentral cell. Multicental development (Biol.), growth, or development, from several centers. According as the insubordination to a single center is more or less pronounced, the resultant organism will be more or less irregular in form and may even discontinuous.…

A hundredweight, either 112 or 100 pounds, according to the scale used. Cf. Cental. [Sometimes written and pronounced kentle.]