| 单词 | blastocyst |
| 释义 | Word Frequency blastocyst(ˈblæstəʊˌsɪst) noun embryology 1. Also called: blastosphere the blastula of mammals: a sphere of cells (trophoblast) enclosing an inner mass of cells and a fluid-filled cavity (blastocoel) 2. another name for germinal vesicle |
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