| 单词 |
river-weed |
| 释义 |
ˈriver-weed [f. river n.1 + weed n.] 1. A weed naturally growing in rivers.
1671Skinner Etym. Bot., River-weed, Conferva Plinii. 1704Dict. Rust. s.v. Sea, Sea and River Weeds. 1805R. W. Dickson Pract. Agric. II. 643 The dung of rabbits, pigeons, and poultry,..river weeds, and other similar matters. 1895Jrnl. R. Agric. Soc. Mar. 12 He..advised river-weeds and sedge as a manure for them. 2. An American aquatic plant, the threadfoot (Podostemon ceratophyllus).
1856A. Gray Man. Bot. (1860) 384 Podostemon, River⁓weed. Ibid., Podostemaceæ, River-weed Family. |

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