invagination

[in-vaj-uh-ney-shuh n]

noun

the act or process of invaginating.
Embryology. the inward movement of a portion of the wall of a blastula in the formation of a gastrula.
a form or shape resulting from an infolded tissue.

Origin of invagination

First recorded in 1650–60; invaginate + -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for invagination

invagination

noun

pathol the process of invaginating or the condition of being invaginated; intussusception
pathol an invaginated organ or part
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

invagination in Medicine

invagination

[ĭn-văj′ə-nāshən]

n.

The act or process of invaginating or the condition of being invaginated.
An invaginated organ or part.
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.