| 单词 | placenta |
| 释义 | placenta[plə'sentə]n. 胎盘, 胎座【化】 胎盘【医】 胎盘 placenta pla.cen.ta AHD: [pl…-sµn“t…] D.J. [pl*6sent*]K.K. [pl*6sWnt*]n.（名词） 【复数】 pla.cen.tas 或 pla.cen.tae [-t¶] 1. A membranous vascular organ that develops in female mammals during pregnancy, lining the uterine wall and partially enveloping the fetus, to which it is attached by the umbilical cord. Following birth, the placenta is expelled.胎盘：雌性哺乳动物在怀孕期间生长的薄膜血管器官，靠着子宫壁且包住由脐带束住的胎儿。随着胎儿出生，胎盘去除2. An organ with similar functions in some nonmammalian animals, such as certain sharks and reptiles.（类似的）胎盘：在一些非哺乳动物身上有类似功能的器官，如某种鲨鱼和蛇3. Botany The part within the ovary of a flowering plant to which the ovules are attached.【植物学】 胎座：开花植物子房内的某部分，胚珠可附于其上语源:1. New Latin 现代拉丁语 2. from Latin [flat cake] 源自 拉丁语 [平饼] 3. alteration of Greek plakoenta [from accusative of] plakoeis [flat] 希腊语 plakoenta的变化 [] 源自plakoeis的使役动词 [平坦的] 4. from plax plak- [flat land, surface] * see pl³k- 1源自 plax plak- [平地，表层] *参见 pl³k- 1继承用法:placen“tal adj.（形容词） |
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