Definition: The term "isocheimenal" is a medical term that refers to a type of cell in the human body called an epidermal keratinocyte. Keratinocytes are specialized cells found on the surface of the skin and other surfaces, such as nails and hair, which help protect them from external damage by forming a protective layer of glycoproteins known as keratin. The term is derived from the Greek words "isos" meaning "two" and "chymale" meaning