这个词是什么意思？
The cluster of cells inside a blastocyst. These cells give rise to the embryonic disc and eventual embryo proper. They are pluripotent EMBRYONIC STEM CELLS capable of yielding many but not all cell types in a developing organism.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D053624 · MeSH 2026。
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