The time taken for the cell to divide and pass through the entire epithelium is known as:

Differentiation – After mictosis, during its migration, a keratinocyte becomes committed to biochemical & morphologic changes. Desquamation – Process of shedding of surface epithelial cells. Maturation – Process of cell migration from the basal layer to the surface. Turnover time / rate – The time taken for the cell to  divide & pass through the entire epithelium.