invagination


in·vag·i·na·tion

noun \-ˌvaj-ə-ˈnā-shən\

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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