from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A tide gate, designed to protect marshland, so constructed as to let out water at low tide, but to prevent an influx of water at high tide.
from The Century Dictionary and Cyclopedia
- To improve (a tidal river or stream) and prevent the tidal overflow of its marshes and tidal meadows by placing tide-gates at its mouth.
- n. A dam to prevent the tide from overflowing a marsh.
Borrowing from Acadian French aboideau (Wiktionary)
James Simonds and his companion, White, organized a tremendous enterprise with the result that an aboideau was built, and other dykes were made, and the great marshes of Tantramar were redeemed from the water.