placental's Usage Examples:

The marsupials also attain their maximum development in Australia (" Notogaea " of the distributionists), extending, however, as far west as Celebes and the Moluccas, although in these islands they form an insignificant minority among an extensive placental fauna, being represented only by the cuscuses (Phalanger), a group unknown in either Papua or Australia.

The Insectivora are certainly the lowest group of existing placental mammals, and exhibit many signs of affinity with marsupials; they may even be a more generalized group than the latter.

That is to say, he believes that, with the exception of the duckbill and the echidna, the mammalian class as a whole can lay claim to descent from small arboreal forms. This view is, of course, almost entirely based upon palaeontological considerations; and these, in the author's opinion, admit of the conclusion that all modern placental and marsupial mammals are descended from a common ancestral stock, of which the members were small in bodily size.

With the exception of the Cetacea, most of the Edentata, and the Sirenia, in which the teeth, when present, have been specialized in a retrograde or aberrant manner, the placental mammals as a whole have a dentition conforming more or less closely to the foregoing type.

These projections and ridges may be homologous with the seminiferous scale of the pines, firs, cedars, 'c. The simplest interpretation of the cone of the Abietineae is that which regards it as a flower consisting of an axis bearing several open carpels, which in the adult cone may be very small or large and prominent, the scale bearing the ovules being regarded as a placental outgrowth from the flat and open carpel.

- Characterized by the woolly scaleleaves and carpels; the latter terminate in a thick laminar expansion of triangular form, bearing two placental cushions, on which the ovules are situated.

The maternal blood circulating around the placental villi is shown in red.

villusmaternal blood circulating around the placental villi is shown in red.

Carla had her first baby at 19 years old and suffered a placental abruption.

and approximates to the placental type.

Synonyms:

yearling, gnawer, gnawing mammal, bat, stock, eutherian mammal, flying lemur, lagomorph, plantigrade mammal, Unguiculata, insectivore, colugo, ant bear, unguiculate, doe, pachyderm, das, eutherian, ungulate, flying cat, cony, unguiculate mammal, rodent, Ungulata, mammal, pangolin, buck, carnivore, primate, proboscidian, placental mammal, farm animal, aquatic mammal, digitigrade, livestock, dassie, bull, subclass Eutheria, anteater, chiropteran, coney, cow, mammalian, scaly anteater, hoofed mammal, edentate, plantigrade, Fissipedia, tree shrew, proboscidean, digitigrade mammal, Eutheria, aardvark, Orycteropus afer, hyrax,

Antonyms:

woman, even-toed ungulate, odd-toed ungulate, digitigrade mammal, plantigrade mammal,