| 单词 | 滋养层 |
| 释义 | 〔choriocarcinoma〕A malignant tumor that develops from trophoblast cells and usually occurs in the uterus.绒毛膜癌：从胚胎滋养层细胞发展的恶性肿瘤，常见于子宫〔trophoblast〕The outermost layer of cells of the blastocyst that attaches the fertilized ovum to the uterine wall and serves as a nutritive pathway for the embryo. Also called trophoderm 胚胎滋养层：囊胚细胞的最外层，它会将受精卵与子宫壁连在一起，同时它是胚胎获取营养的通道 也作 trophoderm |
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