1. In botany, the outermost layer of meristematic tissue in a plant root or shoot that gives rise to the epidermis.
Usage: technical; botany

Examples

• The dermatogen is one of the primary meristems responsible for plant growth.
• In root development, the dermatogen differentiates to form the protective root epidermis.
• Botanists study the dermatogen to understand how plant tissues originate and develop.
• The dermatogen layer maintains the plant's outer protective covering throughout its life.