AskDefine | Define cambium

Dictionary Definition

cambium

Noun

1 formative one-cell-thick layer of tissue between xylem and phloem in most vascular plants that is responsible for secondary growth
2 the inner layer of the periosteum [also: cambia (pl)]

User Contributed Dictionary

English

Etymology

From cambium, 'a change'

Noun

  1. A layer of cells between the xylem and the phloem that is responsible for the secondary growth of roots and stems.

Quotations

  • 1863 — Harland Coultas, What may be learned from a tree
    During winter we perceive no change in the cells of the cambium layer, which are filled with nutritive matter . . .

Translations

Latin

Noun

  1. In the context of "Late Latin}} A change

Extensive Definition

In botany the cambium is a layer or layers of tissue, also known as lateral meristems, that are the source of cells for secondary growth. There are two types of cambium

References

  • Taiz, L and Zeiger, E. 1998. Plant Physiology, 2nd edition. Sinauer Associates, Inc
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