In plants, a layer of actively dividing cells between xylem (fluid-conducting) and phloem (food-conducting) tissues that is responsible for the secondary growth of stems and roots, resulting in an increase in thickness. A cambium may also form within callus tissues. See also bark, wood.
This entry comes from Encyclopædia Britannica Concise.
For the full entry on cambium, visit Britannica.com.
Seen & Heard
What made you look up cambium? Please tell us what you were reading, watching or discussing that led you here.