| 单词 |
hydrom |
| 释义 |
hydrome, hydrom Bot.|ˈhaɪdrəʊm| [ad. G. hydrom (H. Potonié 1883, in Jahrb. K. Bot. Gartens Berlin II. 243), f. hydro- + -ome as in rhizome, etc.] The water-conducting section of a vascular bundle.
1900B. D. Jackson Gloss. Bot. Terms 273/1 Tracheome, stated by Potonié not to be the tracheal, but the hydral system of the bundle, he therefore names it Hydrome. 1911J. M. Coulter et al. Textbk. Bot. II. iii. 682 The conductive portion of the xylem is known as hadrome (or hydrome). 1929Encycl. Brit. XVII. 6/1 The hydrom strand is either slightly developed or altogether absent. 1969K. Esau Phloem viii. 268 The corresponding conducting cells are hydroids (from hydrom, part of hadrom consisting of conducting cells only). |

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