See Also: periderm(medicine)
periderm(dictionary)

periderm (iou)



periderm noun. M19.
[from PERI- + Greek derma skin.]
Botany. The corky layer of a plant stem; spec. a secondary protective tissue, formed from cork cambium and its derivatives, which replaces the epidermis of a stem or root after injury or when it is thickened by secondary growth.
peri'dermal adjective L19.