Definition of cambium in English:



  • A cellular plant tissue from which phloem, xylem, or cork grows by division, resulting (in woody plants) in secondary thickening.

    • ‘Vessels differentiate immediately beneath the vascular cambium in the late-formed xylem.’
    • ‘The outer ring of the stem contains all the functional tissue, including xylem, cambium, phloem, supporting tissues, and epidermis.’
    • ‘Small blocks of tissue, including cambium and the adjacent phloem and xylem, were cut with a sharp knife and a chisel from the stem of a single specimen of K. pictus that was growing on the campus of Hokkaido University.’
    • ‘The cambium produces phloem tissue to the outside and xylem tissue to the inside.’
    • ‘Vascular secondary growth results from the activity of the vascular cambium, which produces secondary phloem and secondary xylem.’


Late 16th century (denoting one of the alimentary humors once supposed to nourish the body): from medieval Latin, ‘change, exchange’.