protoderm

[proh-tuh-durm]

noun Botany.

a thin outer layer of the meristem in embryos and growing points of roots and stems, which gives rise to the epidermis.

Origin of protoderm

First recorded in 1930–35; proto- + -derm

Also called dermatogen.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

protoderm in Science

[prō′tə-dûrm′]

The primary meristem in vascular plants that gives rise to epidermis. Also called dermatogen