xylem

• 木本植物体内输送水分和无机盐的木质化组织，主要由导管和管胞构成，兼具机械支撑作用。

A noun referring to the woody, water-conducting tissue in plants, composed mainly of tracheids and vessels, which provides structural support.

不可数

1. Plant vascular tissueC1formalscientific

   The woody, water-conducting tissue in vascular plants, primarily composed of tracheids and vessels, responsible for transporting water and minerals from roots to other parts of the plant.

   木质部

   • Xylem cells form long tubes that carry water upward through the stem.
   • In trees, the xylem makes up the majority of the wood.
   • The scientist examined the xylem under a microscope to study water transport.