中文翻译
英文解释
常见例句
the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals)
A bar of cartilage at the base of the embryonic fins of some fishes
n an undifferentiated embryonic cell
of or relating to gills (or to parts of the body derived from embryonic gills)
n introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution)
相关词组
胚胎外的, 远胚胎的
[医] 羊膜胚的
[医] 羊膜胚盘原基
[医]癌胚的
弯胚的
[医] 胚流产
[医] 活化质释放[作用]
[医] 无体形畸形
[医] 胚原基
[医] 胚区
[医] 胚轴
[医] 胎部胚盘
胚细胞
[医] 胚中心
[医] 胚循环
[医] 胚反应能力
[医] 胚性结缔组织
[医] 胚索
[医] 胚性囊肿