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Invagination   Listen
noun
Invagination  n.  
1.
(Biol.) The condition of an invaginated organ or part.
2.
The inward movement of the wall of a tissue or cell, to form a cavity; also, the cavity thus formed.
3.
Specifically: (Biol., Embryology) The inward movement of one part of the wall of a blastula, to form a gastrula; the process of gastrulation, in which layers of the ovum are differentiated. Note: In embolic invagination, one half of the blastosphere is pushed in towards the other half, producing an embryonic form known as a gastrula. In epibolic invagination, a phenomenon in the development of some invertebrate ova, the epiblast appears to grow over or around the hypoblast.






Collaborative International Dictionary of English 0.48








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Words linked to "Invagination" :   biological process, organic process, condition



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