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invagination

[in-vaj-uh-ney-shuh n]
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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.
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Origin of invagination

First recorded in 1650–60; invaginate + -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for invagination

invagination

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
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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

invagination in Medicine

invagination

(ĭn-văj′ə-nāshən)
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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.