Cambium

['kæmbɪəm]

解释:

(noun.) the inner layer of the periosteum.

(noun.) a formative one-cell layer of tissue between xylem and phloem in most vascular plants that is responsible for secondary growth.

编辑:谢尔顿--From WordNet

解释:

(n.) A series of formative cells lying outside of the wood proper and inside of the inner bark. The growth of new wood takes place in the cambium, which is very soft.

(n.) A fancied nutritive juice, formerly supposed to originate in the blood, to repair losses of the system, and to promote its increase.

录入:雷内

解释:

n. a layer of vascular tissue formed between the wood and the bark of exogens in which the annual growth is formed.

道格拉斯校对