单词 | mesodesm |
释义 | mesodesmn. Botany. rare. A layer of undifferentiated parenchyma separating the xylem and phloem in certain forms of stele. ΚΠ 1902 Encycl. Brit. XXV. 416/1 Sometimes development stops altogether, and a layer of undifferentiated parenchyma, the mesodesm, is left between them [sc. the xylem and phloem]. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1902 |
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