Definition of "cambium" in English

noun

1. (botany) A layer of cells between the xylem and the phloem that is responsible for the secondary growth of roots and stems.

2. (anatomy) Periosteum, a membrane that covers the outer surface of bones

3. (obsolete) One of the humours formerly believed to nourish the bodily organs.

   • The radical or innate is daily supplied by nourishment, which some call cambium, and make those secondary humours of ros and gluten to maintain it […]