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exodermis

American  
[ek-suh-dur-mis] / ˌɛk səˈdɜr mɪs /

noun

Botany.

  1. a temporary, protective layer of cells in some roots, as in certain orchids.

Other Word Forms

  • exodermal adjective

Etymology

Origin of exodermis

First recorded in 1895–1900; exo- + -dermis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

These layers of thick-walled cells constitute the exodermis.

From Project Gutenberg

Root-hair; p.l. piliferous layer; ex. exodermis; co. cortex.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.