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| cam·bi·um [ kámbee əm ] (plural cam·bi·ums or cam·bi·a [ kámbee ə ]) |
noun |
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| Definition: |
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plant tissue: a cylindrical layer of cells in plant roots and stems that produces the new tissue responsible for increased girth, particularly sap-conducting tissues, xylem and phloem, and bark
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| [Late 17th century. < medieval Latin cambium "exchange" < Latin cambire "to exchange"] |
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 cam·bi·al adjective |
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