fishway

Etymology

From fish + way.

fishway means A structure built on or around dams or locks to facilitate the migration of fish. Lexicurio rates it Sui generis — a strength score of 91 out of 100.

noun

A structure built on or around dams or locks to facilitate the migration of fish.“The weir must not represent a physical barrier to fish migration, both locally and throughout the whole river system. If necessary, a fishway is included in the weir.”