nervure

• 名词，指植物或昆虫的结构元素：既指构成叶片骨架的叶脉（维管束），也指支撑昆虫翅的角质翅脉。

A noun referring to a structural element in plants or insects: either a vascular bundle forming the framework of a leaf, or a horny rib that supports an insect's wing.

1. Leaf veinC2formalscientific

   One of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ.

   叶脉

   • The nervure pattern on this leaf is particularly intricate.
   • Botanists study the arrangement of nervures to identify plant species.
   • Water and nutrients travel through the nervures of a leaf.

   同义词nerveribvein

2. Insect wing veinC2formalscientific

   One of the horny ribs that stiffen and support the wing of an insect.

   昆虫翅脉

   • The nervures on the dragonfly's wing provide structural support.
   • Entomologists examine the pattern of nervures to classify insects.
   • The delicate nervures of the butterfly wing are visible under a microscope.

   同义词nerveribvein