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fish ladder

American  

noun

  1. a series of ascending pools constructed to enable salmon or other fish to swim upstream around or over a dam.


fish ladder British  

noun

  1. 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

Etymology

Origin of fish ladder

An Americanism dating back to 1860–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

To the south, near Commodore Park, between June and October, the underwater fish ladder lets guests peer through panels of glass to watch migrating salmon pass through.

From Seattle Times Mar. 28, 2024

The coho salmon has already conquered the Ballard Locks fish ladder, swum 17 miles through urban Seattle waterways and powered through a tunnel under nine lanes of Interstate 405.

From Seattle Times Mar. 10, 2024

Watch for fall salmon navigating Bridal Veil Falls via the fish ladder.

From Seattle Times Nov. 3, 2022

A third option is the fish ladder at Bonneville Dam, where lampreys sometimes can be spotted suckered onto the glass, making their way slowly up the fish ladder in spring and summer.

From Seattle Times Sep. 23, 2022

Through a wall of windows, watch native fish swim upstream through the emerald waters of the dam’s fish ladder on their journey to spawn.

From Seattle Times Aug. 10, 2022

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