The phrase "subcutaneous layer" refers to the layer of fat and tissue that sits just below the skin. It acts as an insulating layer, helping to regulate body temperature and protect the body's organs and muscles. Full definition
Lufenuron is essentially stored in the dog's subcutaneous layer of fat. (mypetneedsthat.com)
If you had a poor diet and neglected physical activity, chances are that your body will start storing fat into other depots, like the deep subcutaneous layer. (fitnessandpower.com)
In the integumentary system, which includes the skin, it accumulates in the deepest level, the subcutaneous layer, providing insulation from heat and cold. (sciencedaily.com)