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Meaning of invagination

in•vag•i•na•tion

Pronunciation: (in-vaj"u-nā'shun), [key]
— n.
  1. the act or process of invaginating.
  2. the inward movement of a portion of the wall of a blastula in the formation of a gastrula.
  3. intussusception (def. 3).
  4. a form or shape resulting from an infolded tissue.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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