noun aboideau a dyke with a sluicegate that allows flood water to drain but keeps the sea water out 3
noun aboideau a sluicegate in a dyke 3
noun aboideau (Canada, Acadia) 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. 1
noun aboideau (Canada, Acadian) 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. 0
