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

First Known Use of periderm

1849, in the meaning defined above

History and Etymology for periderm

New Latin peridermis, from peri- + -dermis

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The first known use of periderm was in 1849

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More Definitions for periderm

periderm

noun
peri·​derm | \ˈper-ə-ˌdərm \

Medical Definition of periderm 

: the outer layer of the epidermis of the skin especially of the embryo

More from Merriam-Webster on periderm

Britannica.com: Encyclopedia article about periderm

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