Examples from the Web for ingrowth
In the course of embryonic development all glands are formed by an ingrowth of the surface.Disease and Its Causes|William Thomas Councilman
The fins, both median and paired, obtain their musculature by the ingrowth into them of muscle buds from the adjoining myotomes.
But even in stage B there are beginnings of a cellular ventral wall derived from an ingrowth of cells from the two sides.
In these instances there is no commencement of an ingrowth in the manner supposed for meroblastic ova.
Because the mouth and throat are lined by an ingrowth from the external skin; the origin and growth of this is seen in the embryo.Stories of the Universe: Animal Life|B. Lindsay