| 单词 | periderm |
| 释义 | periderm [`per·ǝ´dǝrm] BOTANY A group of secondary tissues forming a protective layer which replaces the epidermis of many plant stems, roots, and other parts; composed of cork cambium, phelloderm, and cork. EMBRYOLOGY The superficial transient layer of epithelial cells of the embryonic epidermis. |
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