per·i·derm (p r  -dûrm )n. The outer layers of tissue of woody roots and stems, consisting of the cork cambium and the tissues produced by it, such as cork. per i·dermal, peri·dermic adj. |
periderm [ˈpɛrɪˌdɜːm]
n
(Life Sciences & Allied Applications / Botany) the outer corky protective layer of woody stems and roots, consisting of cork cambium, phelloderm and cork
[from New Latin peridermis]
peridermal , peridermic adj
| periderm (pr-dûrm) The outer, protective layers of tissue of woody roots and stems, consisting of the cork cambium and the tissues produced by it. See more at cork cambium. |
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