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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 in·vag·i·na·tion /-ˌvæʤəˈneʃən/
 凹入; 內陷; 反折; 折入; 套?

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 in·vag·i·na·tion /-ˌvæʤəˈneʃən/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 In·vag·i·na·tion n.
 1. Biol. The condition of an invaginated organ or part.
 3. Specifically: Biol., Embryology The inward movement of one part of the wall of a blastula, to form a gastrula; the process of gastrulation, in which layers of the ovum are differentiated.
 Note:In embolic invagination, one half of the blastosphere is pushed in towards the other half, producing an embryonic form known as a gastrula. -- In epibolic invagination, a phenomenon in the development of some invertebrate ova, the epiblast appears to grow over or around the hypoblast.
 

From: WordNet (r) 2.0

 invagination
      n 1: the condition of being folded inward or sheathed [syn: introversion]
      2: the folding in of an outer layer so as to form a pocket in
         the surface; "the invagination of the blastula" [syn: introversion,
          intussusception, infolding]