WordReference Random House Unabridged Dictionary of American English © 2024in•vag•i•na•tion (in vaj′ə nā′shən),USA pronunciation n. - the act or process of invaginating.
- Developmental Biology[Embryol.]the inward movement of a portion of the wall of a blastula in the formation of a gastrula.
- Pathologyintussusception (def. 3).
- Anatomya form or shape resulting from an infolded tissue.
- invaginate + -ion 1650–60
Collins Concise English Dictionary © HarperCollins Publishers::
inˌvagiˈnation /ɪnˌvædʒɪˈneɪʃən/ n - the process of invaginating or the condition of being invaginated; intussusception
- 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