[kam-bee-uh
m] 
[-bee-uh] . Botany. | a layer of delicate meristematic tissue between the inner bark or phloem and the wood or xylem, which produces new phloem on the outside and new xylem on the inside in stems, roots, etc., originating all secondary growth in plants and forming the annual rings of wood. |
| cam·bi·um (kām'bē-əm) n. pl. cam·bi·ums or cam·bi·a (-bē-ə) A lateral meristem in vascular plants, including the vascular cambium and cork cambium, that forms parallel rows of cells resulting in secondary tissues. [Medieval Latin, exchange, from Late Latin cambīre, cambiāre, to exchange, of Celtic origin.] cam'bi·al adj. |
The layer of a tree where growth occurs, just under the bark.
