invagination
Noun
Meaning
The condition of an invaginated organ or part.
One of the methods by which the various germinal layers of the ovum are differentiated.
Source: Webster's dictionarySynonyms
Hypernyms
Examples
the invagination of the blastula
In Sepia, which has an internal shell, the ectoderm forms an invagination whose pore is sealed off before this organic framework is deposited.
The invagination is pinched off, leaving the engulfed material in the membrane-enclosed vacuole and the cell membrane intact.
The cells of the epiblast move toward the primitive streak and slip beneath it in a process called invagination.