fish ladder

noun

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

Origin of fish ladder

An Americanism dating back to 1860–65

Words nearby fish ladder

fish hatchery, fish hawk, fish in troubled waters, fish joint, fish knife, fish ladder, fish louse, fish meal, fish or cut bait, fish out, fish out of water

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

fish ladder

noun

a row of ascending pools or weirs connected by short falls to allow fish to pass barrages or dams