invaginating gastrulation 内陷式原肠形成
V to push one section of (a tubular organ or part) back into itself so that it becomes ensheathed; intussuscept 将(管状器官或部位)一部分推入管中; 向内缩 [pathol]
ADJ (of an organ or part) folded back upon itself (器官或部位)套叠的
And shortly thereafter this thickening of the outer surface is dimpling in, its invaginating.
增厚的外胚层很快就,向内凹陷。
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