epiphragm / ˈɛp əˌfræm /

📖毕业后词汇肾上腺素肾上腺激素肾上腺皮质激素肾上腺素的作用

epiphragm 的定义

n. 名词 noun
  1. a calcified or membranous septum produced by certain land snails during hibernation and functioning to cover the shell opening and prevent desiccation.
  2. Botany. a membrane enclosing the capsule in certain mosses.