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Definition of "invagination" [in•vag•i•na•tion]

  • The act or process of invaginating or the condition of being invaginated. (noun)
  • An invaginated organ or part. (noun)
  • Embryology The infolding of a portion of the outer layer of a blastula in the formation of a gastrula. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "invagination" in a sentence
  • "Upper blastopore lip still engaged in invagination was implanted in a different orientation in relation to the host embryo - crosswise and opposite to the orientation of the later primary primordia."
  • "A. de Boer 2007 The trans-envelope Tol-Pal complex is part of the cell division machinery and required for proper outer-membrane invagination during cell constriction in E. coli."
  • "Origami-like folding, Oster-style invagination and pinching off: these are just some of the simplest tricks for building embryos."