periderm
/ˈperɪdɜːm/noun
mass noun
- Botany the corky outer layer of a plant stem formed in secondary thickening or as a response to injury or infection【植】（茎次生加厚或对受损或感染响应形成的）周皮。
派生词
peridermal
adjective词源
mid 19th cent.: from PERI-'around' + Greek derma 'skin'.