- invagination, introversion, intussusception, infolding - the folding in of an outer layer so as to form a pocket in the surface; "the invagination of the blastula"
--1 is a kind of organic process, biological process
Derived form: verb intussuscept1 - intussusception - (biology) growth in the surface area of a cell by the deposit of new particles between existing particles in the cell wall
--2 is a kind of growth, growing, maturation, development, ontogeny, ontogenesis