Invagination

[in-vaj-uh-ney-shuh n] /ɪnˌvædʒ əˈneɪ ʃən/

noun
1.
the act or process of .
2.
Embryology. the inward movement of a portion of the wall of a blastula in the formation of a gastrula.
3.
Pathology. (def 3).
4.
a form or shape resulting from an infolded tissue.
/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

invagination in·vag·i·na·tion (ĭn-vāj’ə-nā’shən)
n.

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