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cambium

noun [C or U]
 
 
/ˈkæm.bi.əm/ (plural cambiums or cambia) specialized

Definition

a layer of cells in the roots and stems of some plants that divide to produce new tissue, such as xylem and phloemParts of plants
(Definition of cambium noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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