placentalianadj.n.

Brit.

/ˌplas(ə)nˈteɪlɪən/, U.S.

/ˌplæs(ə)nˈteɪljən/,

/ˌplæs(ə)nˈteɪliən/

Origin: Either (i) formed within English, by derivation. Or (ii) a borrowing from Latin, combined with an English element. Etymons: Placentalia n.; Latin Placentalia , -an suffix.

Etymology: < Placentalia n. or its etymon scientific Latin Placentalia + -an suffix. Compare earlier placental adj., placentiferous adj. With use as noun compare placentary n. and earlier placental n.

Now rare.

A. adj.

Of or relating to the division Placentalia; eutherian.

ΘΚΠ

the world > animals > mammals > group Placentalia > [adjective]

monodelphous1854

placentalian1857

placentary1864

monodelphian1869

monodelphic1883

1857 L. Agassiz Ess. Classif. i, in Contrib. Nat. Hist. U.S.A. I. 87 (note) Even the placentalian and non-placentalian Mammalia agree with one another in what is essential in their development.

1889 Amer. Naturalist 23 926 The preplacental absorption of food by the embryos of placentalian mammals.

1930 Q. Rev. Biol. 5 181/2 Notoryctes typhlops, a digging marsupial type adapted like Talpa among the placentalian insectivores.

1958 F. E. Zenner Dating Past (ed. 4) 349 The evolution of the placentalian mammals with their great variety of forms illustrates the duration of this period more adequately than the less rapidly evolving Tertiary mollusca and plants.

B. n.

A placental mammal, a eutherian. rare.

ΚΠ

1890 Cent. Dict. Placentalian, a. and n.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	placentalian
释义	placentalianadj.n. Brit. /ˌplas(ə)nˈteɪlɪən/, U.S. /ˌplæs(ə)nˈteɪljən/, /ˌplæs(ə)nˈteɪliən/ Origin: Either (i) formed within English, by derivation. Or (ii) a borrowing from Latin, combined with an English element. Etymons: Placentalia n.; Latin Placentalia , -an suffix. Etymology: < Placentalia n. or its etymon scientific Latin Placentalia + -an suffix. Compare earlier placental adj., placentiferous adj. With use as noun compare placentary n. and earlier placental n. Now rare. A. adj. Of or relating to the division Placentalia; eutherian. ΘΚΠ the world > animals > mammals > group Placentalia > [adjective] monodelphous1854 placentalian1857 placentary1864 monodelphian1869 monodelphic1883 1857 L. Agassiz Ess. Classif. i, in Contrib. Nat. Hist. U.S.A. I. 87 (note) Even the placentalian and non-placentalian Mammalia agree with one another in what is essential in their development. 1889 Amer. Naturalist 23 926 The preplacental absorption of food by the embryos of placentalian mammals. 1930 Q. Rev. Biol. 5 181/2 Notoryctes typhlops, a digging marsupial type adapted like Talpa among the placentalian insectivores. 1958 F. E. Zenner Dating Past (ed. 4) 349 The evolution of the placentalian mammals with their great variety of forms illustrates the duration of this period more adequately than the less rapidly evolving Tertiary mollusca and plants. B. n. A placental mammal, a eutherian. rare. ΚΠ 1890 Cent. Dict. Placentalian, a. and n. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < adj.n.1857
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