NCIt definition : The lower portion of the dermis beneath the papillary dermis. It is composed of thick
collagen fibers.;
Alternative definition : NCI-GLOSS: The thick bottom layer of the dermis (the inner layer of the skin). The
reticular dermis has blood vessels and connective tissue that supports the skin. Hair
follicles, oil and sweat glands, and other structures are also found in the reticular
dermis.;