invagination

noun
in·vag·i·na·tion | \ in-ˌva-jə-ˈnā-shən \

Definition of invagination 

1 : an act or process of invaginating specifically : the formation of a gastrula by an infolding of part of the wall of the blastula

2 : an invaginated part

First Known Use of invagination

circa 1658, in the meaning defined at sense 1

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The first known use of invagination was circa 1658

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More Definitions for invagination

invagination

noun
in·vag·i·na·tion | \ -ˌvaj-ə-ˈnā-shən \

Medical Definition of invagination 

1 : an act or process of invaginating: as

a : the formation of a gastrula by an infolding of part of the wall of the blastula

b : intestinal intussusception

2 : an invaginated part

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