fish ladder

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noun

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

Nearby words

  1. fish hatchery,
  2. fish hawk,
  3. fish in troubled waters,
  4. fish joint,
  5. fish knife,
  6. fish louse,
  7. fish meal,
  8. fish or cut bait,
  9. fish out,
  10. fish out of water

Origin of fish ladder

An Americanism dating back to 1860–65

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples 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

fish ladder

noun

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