protoderm

[ proh-tuh-durm ]

noun

, Botany.

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

protoderm

/ prō′tə-dûrm′ /

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

Word History and Origins

Origin of protoderm¹

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