An inlet from the Gulf of Mexico, from a lake, or from a large river, sometimes sluggish, sometimes without perceptible movement except from tide and wind.
a slow-moving or stationary body of water that was once part of a larger body of water (like a river or lake) and is now a swamp. The word "bayou" is mostly used in Louisiana and Mississippi.
A relatively small, sluggish waterway through lowlands or swamps, generally with a slow, almost imperceptible current flow. Often also defined simply as slow moving streams crisscrossing Louisiana.