corium

/ˈkɔriəm/
noun
  1. The thick layer of skin beneath the outer layer (epidermis), containing blood vessels, nerves, and connective tissue; also called the dermis.
    • The corium contains the blood vessels that help regulate body temperature.
    • A deep cut that reaches the corium may require stitches to heal properly.
    • Tattoo ink is injected into the corium so that it stays in place permanently.
Synonyms