The outer layer of the fertilised OVUM which attaches the ovum to the wall of the UTERUS (or womb) and supplies nutrition to the EMBRYO.
| 单词 | Trophoblast |
| 释义 | The outer layer of the fertilised OVUM which attaches the ovum to the wall of the UTERUS (or womb) and supplies nutrition to the EMBRYO. |
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