see leap, n.1 2b.
单词 | θ54825 |
释义 | the world > food and drink > farming > animal husbandry > fish-keeping, farming, or breeding > [noun] > fish passage or ladder (8) salmon leapa1387 see leap, n.1 2b. fish-way1845 an arrangement for enabling fish to ascend a fall or dam. fish-pass1861 = fish-way n. pass1861 A channel built to enable fish to swim past or over a weir or similar obstacle, esp. (more fully salmon pass) one for salmon migrating upstream… fish-ladder1865 a series of steps to enable fish to ascend a fall or dam by a succession of leaps. salmon ladder1867 a fish ladder for salmon; also, transferred ‘a contrivance used in the chemical treatment of sewage’ (Cent. Dict.). salmon pass1867 = salmon ladder n. zigzaga1877 Applied spec. to other things of a zigzag shape. Fisheries. (See quot.) |
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