exodermis

[ ek-suh-dur-mis ]

noun

, Botany.

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

Other Words From

• exo·dermal 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