单词 | embryonic membrane |
释义 | embryonic membrane (once / 1688473 pages) n WORD FAMILY embryonic membrane: embryonic membranes n the inner membrane of embryos in higher vertebrates (especially when covering the head at birth) Syn|Hyper caul, veil fetal membrane any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus |
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