exodermis

[ek-suh-dur-mis]

noun

Botany.

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

Other Word Forms

• exodermal adjective

Word History and Origins

Origin of exodermis¹

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

Example Sentences

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