First Known Use: 1849
Dictionary
periderm
noun peri·derm \ˈper-ə-ˌdərm\
Definition of PERIDERM
: an outer layer of tissue; especially : a cortical protective layer of many roots and stems that typically consists of phellem, phellogen, and phelloderm
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Origin of PERIDERM
New Latin peridermis, from peri- + -dermis
Medical Dictionary
periderm
noun peri·derm \ˈper-ə-ˌdərm\
Medical Definition of PERIDERM
: the outer layer of the epidermis of the skin especially of the embryo
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