| 单词 |
procambium |
| 释义 |
‖ procambium Bot.|prəʊˈkæmbɪəm| [mod.L.: see pro-2 1 and cambium.] The young tissue of a fibrovascular bundle, before its differentiation into permanent cells of wood, bast, etc. Also attrib. Hence proˈcambial a., of or pertaining to procambium.
1875Bennett & Dyer tr. Sachs' Bot. 93 This form of tissue of the young bundle, which has not yet undergone differentiation, may be termed Procambium. Ibid., As soon as a procambium bundle has become transformed into a closed fibro-vascular bundle, all further growth ceases. 1876J. H. Balfour in Encycl. Brit. IV. 105/2 A procambial bundle being first formed, which differentiates..into xylem and phloëm layers. |

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