metaxylem / ˌmɛt əˈzaɪ ləm, -lɛm /

📖毕业后词汇元木质部中轴线元气质层元气质部

metaxylem 的定义

n. 名词 noun

Botany.

  1. the part of the primary xylem that is the last to be formed, usually having weblike or pitted surfaces.