periderm

noun

peri·​derm ˈper-ə-ˌdərm How to pronounce periderm (audio)
: an outer layer of tissue
especially : a cortical protective layer of many roots and stems that typically consists of phellem, phellogen, and phelloderm

Word History

Etymology

New Latin peridermis, from peri- + -dermis

First Known Use

1849, in the meaning defined above

Time Traveler
The first known use of periderm was in 1849

Dictionary Entries Near periderm

Cite this Entry

“Periderm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periderm. Accessed 22 May. 2024.

Medical Definition

periderm

noun
peri·​derm ˈper-ə-ˌdərm How to pronounce periderm (audio)
: the outer layer of the epidermis of the skin especially of the embryo

More from Merriam-Webster on periderm

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!