形けい成せい層そう

noun

cambium; cambium layer

Botanical term for the layer of actively dividing cells between xylem and phloem in vascular plants.

• 形けい成せい層そうは木もく部ぶと師し部ぶの間あいだにある分ぶん裂れつ組そ織しきです。

  The cambium is a meristematic tissue located between the xylem and phloem.

• 樹じゅ木もくの幹みきが太ふとくなるのは形けい成せい層そうの働はたらきによる。

  The thickening of a tree trunk is due to the activity of the cambium.