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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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British Dictionary definitions for invagination

invagination

/ɪnˌvædʒɪˈneɪʃən/
noun
1.
(pathol) the process of invaginating or the condition of being invaginated; intussusception
2.
(pathol) an invaginated organ or part
3.
an infolding of the outer layer of cells of an organism or part of an organism so as to form a pocket in the surface, as in the embryonic development of a gastrula from a blastula
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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invagination 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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