exo·​der·​mis ˌek-sō-ˈdər-məs How to pronounce exodermis (audio)
: a layer of the outer living cortical cells of plants that takes over the functions of the epidermis in roots lacking secondary thickening

Word History


New Latin

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of exodermis was in 1889

Dictionary Entries Near exodermis

Cite this Entry

“Exodermis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exodermis. Accessed 27 May. 2024.

Love words? Need even more definitions?

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