What does the word stratified mean relating to tissue

classification?

It is made up of one or more layers of cells closely packed together. A stratified epithelium is a type of epithelial tissue that is composed of more than one layer of epithelial cells. The basal layer is the only one that is in contact with the basal lamina.

Explanation:

The bold is what you are looking for.

a stratified squamous (flatterd) epithelium cells arranged in laywer upon a basal membrane