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EnglishEdit

 
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NounEdit

fish ladder ‎(plural fish ladders)

  1. A structure built on or around dams or locks to facilitate the migration of fish.
    • 1941, Emily Carr, Klee Wyck, Chapter 18, [1]
      We came to the base of an abnormally long perpendicular fish ladder, stretching up, up into shadow so overwhelmingly deep it seemed as if a pit had been inverted over our heads.

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