The term 'dermal opening' refers to a type of opening in the skin. Specifically, it is composed of two parts: a PORE (4 letters) and an epidermal opening (3 letters). Pores are small openings in the skin that allow sweat and other secretions to be released. Epidermal openings are openings in the outermost layer of the skin that allow for the exchange of gases and other substances between the body and the environment. Together, these two openings form the dermal opening, which is essential for the proper functioning of the skin.