| 单词 |
placentary |
| 释义 |
placentary, a. (n.)|ˈplæsəntərɪ, pləˈsɛntərɪ| [ad. mod.L. placentārius, f. placenta: see -ary1. So F. placentaire.] Of, pertaining or relating to the placenta; placental (Zool. and Bot.). b. Zool. Of or pertaining to the Placentalia or Placentaria.
1843–4Trans. Linnean Soc. (1845) XIX. 321 The placentary hypothesis of M. Schleiden. 1848Lindley Introd. Bot. (ed. 4) I. 377 Uncertainty in the position of the placentary lines. 1864Webster s.v., The placentary system of classification. 1895Syd. Soc. Lex., Placentary, belonging, or referring to, the Placenta. B. n. Zool. A placental mammal.
1890in Cent. Dict. |

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