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invagination

[in-vaj-uh-ney-shuh n] /ɪnˌvædʒ əˈneɪ ʃən/
noun
1.
the act or process of invaginating.
2.
Embryology. the inward movement of a portion of the wall of a blastula in the formation of a gastrula.
3.
Pathology, intussusception (def 3).
4.
a form or shape resulting from an infolded tissue.
Origin
1650-1660
1650-60; invaginate + -ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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invaginations in Medicine

invagination in·vag·i·na·tion (ĭn-vāj'ə-nā'shən)
n.

  1. The act or process of invaginating or the condition of being invaginated.

  2. An invaginated organ or part.

  3. The infolding of a portion of the outer layer of a blastula in the formation of a gastrula.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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