from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A series of artificial pools arranged like ascending steps, enabling migrating fish to swim upstream around a dam or other obstruction.
from The Century Dictionary.
- noun Same as
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
structurebuilt on or around dams or locks to faciliate the migrationof fish.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a series of ascending pools providing a passage for salmon to swim upstream past a dam
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