Assertion: epidermis's layer | /r/CapableOf | become flattened
Facets:
value: progressively
type: MANNER
value: increasingly
type: DEGREE
Source sentences:
text: Stratum granulosum: A layer of rectangular cells that become increasingly flattened as they move to the surface of the epidermis.
text: …generative layer, known as the stratum germinativum, cells move outward and become progressively flattened.