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2026-04-11

“Placentalia”的英英意思

单词 Placentalia
释义 Placentalia, n. pl. Zool.|plæsənˈteɪlɪə|
[mod.L. (L. Bonaparte 1837), neuter pl. of placentāl-is adj.: see prec.]
Placental mammals; a primary division of Mammalia, comprising those provided with a placenta: contrasted with Marsupialia and Monotremata. It corresponds to the more recent divisions Monodelphia and Eutheria.
1842in Brande Dict. Sci. etc.1873J. Geikie Gt. Ice Age App. 526.
Hence placenˈtalian, (a) adj., of or pertaining to the Placentalia; (b) n. one of these.
1890in Cent. Dict.1895in Syd. Soc. Lex.

 

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