Final answer:
A nurse may use the term 'laceration' to describe a linear crack from the epidermis. A laceration is a cut or tear in the skin that requires medical attention to heal.
Step-by-step explanation:
The linear crack from the epidermis that a nurse may use to describe is called a laceration. A laceration is a cut or tear in the skin that can occur due to various reasons such as accidents, injuries, or surgical procedures. It is characterized by a linear or jagged break in the skin that may require medical attention to clean, stitch, and heal properly.