| 单词 | invagination |
| 释义 | invagination [in´vaj·ǝ`nā·shǝn] EMBRYOLOGY The enfolding of a part of the wall of the blastula to form a gastrula. PHYSIOLOGY 1. The act of ensheathing or becoming ensheathed. 2. The process of burrowing or enfolding to form a hollow space within a previously solid structure, as the invagination of the nasal mucosa within a bone of the skull to form a paranasal sinus. |
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