'Bayou' definitions:

Definition of 'bayou'

From: WordNet
noun
A swampy arm or slow-moving outlet of a lake (term used mainly in Mississippi and Louisiana)

Definition of 'Bayou'

From: GCIDE
  • Bayou \Bay"ou\, n.; pl. Bayous. [North Am. Indian bayuk, in F. spelling bayouc, bayouque.] 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. [Southern U. S.] [1913 Webster]
  • A dark slender thread of a bayou moves loiteringly northeastward into a swamp of huge cypresses. --G. W. Cable. [1913 Webster]

Synonyms of 'bayou'

From: Moby Thesaurus