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. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

protoderm in Science



The primary meristem in vascular plants that gives rise to epidermis. Also called dermatogen
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.