a series of ascending pools constructed to enable salmon or other fish to swim upstream around or over a dam.
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Origin of fish ladder
An Americanism dating back to 1860–65
Words nearby fish ladder
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for fish ladder
There's more good water—two miles of it—to the east, and all it needed was a fish-ladder around Scaur Falls.The Flaming Jewel|Robert W. Chambers
British Dictionary definitions for fish ladder
a row of ascending pools or weirs connected by short falls to allow fish to pass barrages or dams
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012