Final answer:
The hypodermis is described by the term subcutaneous. It is a layer beneath the dermis made up of connective tissue and fat, providing insulation and padding.
Step-by-step explanation:
The term that describes the hypodermis is subcutaneous. The hypodermis, also known as subcutaneous tissue, is the layer of tissue that lies beneath the dermis of the skin. This layer is primarily made up of connective tissue and fat and serves as an insulator and padding for the body. It connects the dermis to the underlying structures. Unlike the papillary and reticular layers which are part of the dermis, the hypodermis is a separate layer that sits below the dermis.