单词 | blastoderm |
释义 | blastoderm —blastodermic, blastodermatic, adj. /blas"teuh derrm'/, n. Embryol. 1. the primitive layer of cells that results from the segmentation of the ovum. 2. the layer of cells forming the wall of the blastula, and in most vertebrates enclosing a cavity or a yolk mass. [1855-60; BLASTO- + -DERM] |
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