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.

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Other Word Forms

• exodermal adjective

Etymology

Origin of exodermis

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

Example Sentences

Sclerenchyma cells of the exodermis and xylem cells stain red, and phloem cells stain blue.

From Textbooks • Jun. 9, 2022

Surrounding the exodermis is the epidermis, which is a single cell layer thick.

From Textbooks • Jan. 1, 2015

The exodermis is about two cells thick and is made up of sclerenchyma cells that stain red.

From Textbooks • Jan. 1, 2015

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

From A Handbook of Some South Indian Grasses by Rangachari, K.

These layers of thick-walled cells constitute the exodermis.

From A Handbook of Some South Indian Grasses by Rangachari, K.