protoderm / ˈproʊ təˌdɜrm /

🎓大学词汇原生胚胎原生胚层原生质原生胚芽

protoderm 的定义

n. 名词 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.