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cambium n. 形成层,新生组织 形成层,新生组织 cambium n 1: a formative one-cell layer of tissue between xylem and phloem in most vascular plants that is responsible for secondary growth 2: the inner layer of the periosteum Cambium \Cam"bi*um\, n. [LL. cambium exchange, fr. L. cambire to
exchange. It was supposed that cambium was sap changing into wood.] 1. (Bot.) 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. [1913 Webster] 2. (Med.) A fancied nutritive juice, formerly supposed to originate in the blood, to repair losses of the system, and to promote its increase. --Dunglison. [1913 Webster]
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